Incorrect URL accessed!!!!

Bhumi Ahuja 4 years, 2 months ago

Since,Earth is big ,we feel its gravitational pull. The gravitational force between the earth and the sun sticks us together.gravity exist everywhere.there is a mass. Gravitational attraction or simple gravity directly proportional to mass.

3Thank You

Kanishtha Sarathe 4 years, 2 months ago

Maths

ANSWER

State any three ways by which canstopthe transmission of diseses

Posted by Manoj Kumar Pradhan 4 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Shree Kushwaha 4 years, 2 months ago

1. Drink clean water. 2. Keep your surroundings clean 3 . Cover ur mouth or nose while coughing and sneezing.

Yogita Ingle 4 years, 2 months ago

Precautions to reduce incidence of infectious diseases are:

(i) Stay away from the diseased person.
(ii) Cover your mouth or nose while coughing or sneezing to prevent the spread of disease.
(iii) Drink safe water.
(iv) Keep the environment clean to prevent mosquitoes from breeding.

ANSWER

Define melting and diffusion

Posted by Jasmine Kaur 4 years, 2 months ago

CBSE > Class 09 > Science

3 answers

Madhusmita Sahu 4 years, 2 months ago

Gaurav you are a nice student

Amrit Raj 4 years, 2 months ago

Melting, change of a solidinto a liquid when heat is applied. In a pure crystalline solid, this process occurs at a fixed temperature called the melting point; an impure solid generally melts over a range of temperatures below the melting point of the principal component. Amorphous (non-crystalline) substances such as glass or pitch melt by gradually decreasing in viscosity as temperature is raised, with no sharp transition from solid to liquid.

Gaurav Seth 4 years, 2 months ago

Diffusion is the movement of particles from a high concentration to a low concentration. Brownian motion is the diffusion of many particles.
Melting point is the temperature at which a solid changes its phase to become a liquid. The process is called melting.

4Thank You

ANSWER

The rajdhani express travels from Mumbai to Delhi a distance of 1384km. It from Mumbai at 4:00 p.m and reaches Delhi at 9:00 am,the next day .what is its the speed

Posted by Gayatri Rajbhar 4 years, 2 months ago

CBSE > Class 09 > Science

5 answers

Neha S 4 years, 2 months ago

speed=total distance/total time taken so, total distance =1384 km total time taken=17 hrs substitute the value in the formula =1384/17 =81 km/hr

Neha S 4 years, 2 months ago

speed =total distance/total time taken

Jasmine Kaur 4 years, 2 months ago

Distance=s=1384 km time interval= 4:00 pm to 9:00 am Let 4:00 pm be 1 hr. After 12 hours half of the day is complete. So, after 12 hours the time would be 4:00 am. But, the final time is 9:00 am and time difference between 9:00 am and 4:00 am is 5 hours. So the total time taken=12+5=17 hours We know that, average speed = total distance travelled/total time taken =1384/17=81 km/h

3Thank You

Gaurav Seth 4 years, 2 months ago

The Rajdhani Express travels from Mumbai to Delhi a distance of 1384 km.

Its Starts from Mumbai at 4.00 p.m. and reaches Delhi at 9.00 a.m., the next day.

So,

Total Distance travelled = 1384 km

Total Time taken = 17 hours

So We know that

Average speed =

Total Distance travelled/ Total time taken

= 81.4 km/ h

So, The Average speed is 81.4 km per hour.

Yogita Ingle 4 years, 2 months ago

Distance=s=1384 km
time interval= 4:00 pm to 9:00 am
Let 4:00 pm be 1 hr.
After 12 hours half of the day is complete. So, after 12 hours the time would be 4:00 am. But, the final time is 9:00 am and time difference between 9:00 am and 4:00 am is 5 hours.
So the total time taken=12+5=17 hours
We know that, average speed = total distance travelled/total time taken
=1384/17=81 km/h

ANSWER

What is cavity

Posted by Raghav . 4 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Anupriya Kumari 4 years, 2 months ago

A cavity is a hole that can grow bigger and deeper over time. It is also called dental caries. It is also a type of bacteria, if we do not brush our teeth then harmful bacteria also grows and break down the sugars in our food and release acid. This acid is very harmful for our teeth if it is released then it damages our teeth this is called tooth decay and when after tooth decay and a tiny hole appears on the surface of teeth which slowly gets bigger is called cavity.

Sreedevi Bandi 4 years, 2 months ago

,,,,,,,,,,,,,,,,,,,,,,,,,,................. ............. ....... ........... ..... ,, ,,,,,,,,,,,,,,,,,,,,,,,,, ,,,,, ,,,,,,,,,,,,,, ..................,,,,,,,

ANSWER

??? ?? ?? ??? ???? ?? ?????????? ????? ???????

Posted by Arpita Gautam 4 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 4 years, 2 months ago

While doing cooking, generally we add salt to vegetables ( contains water).
Adding salt, makes the concentration of salt higher in outside membrane of vegetables than in inside. ( more salt, less water)

As a result, due the process of OSMOSIS, water from vegetables comes outside making it softer and helps in faster cooking.

ANSWER

??? ?? ?? ??? ???? ?? ?????????? ????? ???????

Posted by Arpita Gautam 4 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Meghna Thapar 4 years, 2 months ago

Cooked vegetables Salting the water for boiling or blanching vegetables speeds up cooking by hastening the breakdown of hemicelluloses, substances that help hold vegetable fibers together.

Add salt in the end while sauteeing veggies for a crunchy.
While cooking meat , at salt right in the beginning.
Starchy foods like rice and pasta also need salt to make them flavourful.

ANSWER

??? ?? ?? ??? ???? ?? ?????????? ????? ???????

Posted by Arpita Gautam 4 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Dhawal Khatri 4 years, 2 months ago

Hello Arpita

Hanshika (Honey) 4 years, 2 months ago

Because of taste??

ANSWER

Phsy.org try karo Google go

Posted by Kartikeya Srivastav 4 years, 2 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Who is maharshi kanad

Posted by Shantnu Bhati 4 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Hanshika (Honey) 4 years, 2 months ago

Maharishi kanad coined the term parmanu

Divya Raj 4 years, 2 months ago

Kanada, also known as Kashyapa, Ulūka, Kananda and Kanabhuk, was an ancient Indian natural scientist and philosopher who founded the Vaisheshika school of Indian philosophy that also represents the earliest Indian physics. Born: Gujarat Notable idea: Atomism School: Vaisheshika school of Hinduism (influenced by Jainism) Books: Vaiśeṣika Sūtra

ANSWER

Describe Tendon..

Posted by Srishti Kumari 4 years, 2 months ago

CBSE > Class 09 > Science

4 answers

Srishti Kumari 4 years, 2 months ago

Thanks a lot

Shree Kushwaha 4 years, 2 months ago

Tendons may also attaches muscles to structure such as the eye ball . A tendon serves to move the bone or structure

Shree Kushwaha 4 years, 2 months ago

A tendon is a fibrous connective tissue which attaches muscles to bones .

Srishti Kumari 4 years, 2 months ago

Always confused in bone to bone or muscle to bone.. Please help me ..,.

ANSWER

What is acceleration? ?

Posted by Samriddhi Jaiswal 4 years, 2 months ago

CBSE > Class 09 > Science

5 answers

Srishti Kumari 4 years, 2 months ago

THE RATE OF CHANGE OF VELOCITY IS KNOWN AS ACCELERATION ....

3Thank You

Ayush Shekhar 4 years, 2 months ago

Rate of change of velocity according to time is called acceleration.

Shree Kushwaha 4 years, 2 months ago

Rate of change of velocity is called Acceleration

Suzanne Smitha 4 years, 2 months ago

Rate of change of velocity is called as Acceleration

Anjali Patel 4 years, 2 months ago

The rate of change of speed is called acceleration

ANSWER

Why earthquake happened

Posted by Ankit Kumar 4 years, 2 months ago

CBSE > Class 09 > Science

4 answers

Madhusmita Sahu 4 years, 2 months ago

Because of volcanic eruption and also moving of plates so that the earthquake happened

Daksh Chauhan 4 years, 2 months ago

By volcanic eruption and by tectonic plates

S Mohammed Suraim 4 years, 2 months ago

Earthquake arrive when the plates collide with one another The area where mostly earthquake happens is called seismic zone

Namashya Kr. Gouda 4 years, 2 months ago

Earthquakes are usually caused when rock underground suddenly breaks along a fault. This sudden release of energy causes the seismic waves that make the ground shake.

ANSWER

Who is James Prescott joule

Posted by Dais Sunny 4 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 4 years, 2 months ago

James Prescott Joule studied the nature of heat and established its relationship to mechanical work. He laid the foundation for the theory of conservation of energy, which later influenced the First Law of Thermodynamics. He also formulated the Joule’s law which deals with the transfer of energy.

ANSWER

What is the appropriate definition of mass

Posted by Simran Kaur 4 years, 2 months ago

CBSE > Class 09 > Science

3 answers

Shubham Anand 4 years, 2 months ago

M=f÷g

Satwik Banerjee 4 years, 2 months ago

Mass is the measure of its inertia. The s.i. unit of mass is kg.

Gaurav Seth 4 years, 2 months ago

Mass is a measure of the amount of matter in an object. Mass is usually measured in grams (g) or kilograms (kg).

Mass measures the quantity of matter regardless of both its location in the universe and the gravitational force applied to it. An object's mass is constant in all circumstances; contrast this with its weight, a force that depends on gravity.

ANSWER

How does the process of fertilisation take place in flower

Posted by Ranjeet Yadav 4 years, 2 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Mera ek question big bang ke bare me jiske mutabik ek chote se particle se pura universe bana ab ye batao ki vo particle kaha tha jab kuch nahi tha toh sab kuch black tha mera question hai vo black colour ki cheez thi kya agar kisi ko pata chale toh please bata dena

Posted by Kartikeya Srivastav 4 years, 2 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Difference between animal tissue and plant tissue?

Posted by Jiya Pasare 4 years, 2 months ago

CBSE > Class 09 > Science

3 answers

Kavanpreet Kaur 4 years, 2 months ago

PLANT TISSUES ANIMAL TISSUES Dead supportive tissues are more abundant as compared to living tissues. Living supportive tissues are more abundant as compared to dead tissues. Require less maintenance energy. Require more maintenance energy. Differentiation of meristematic and permanent tissues. No differentiation of meristematic and permanent tissues. Organisation is simple. Organisation is relatively complex. Tissue organisation is meant for stationary habit of plants. Tissue organisation is meant for high mobility of animals.

Kartikeya Srivastav 4 years, 2 months ago

Ek app install karo Socratic by Google usme jo kahi nahi milta vo vaha milta hai bye

Gaurav Seth 4 years, 2 months ago

PLANT TISSUES	ANIMAL TISSUES
Dead supportive tissues are more abundant as compared to living tissues.	Living supportive tissues are more abundant as compared to dead tissues.
Require less maintenance energy.	Require more maintenance energy.
Differentiation of meristematic and permanent tissues.	No differentiation of meristematic and permanent tissues.
Organisation is simple.	Organisation is relatively complex.
Tissue organisation is meant for stationary habit of plants.	Tissue organisation is meant for high mobility of animals.

ANSWER

Which cell organelles give rise to the lysosomes

Posted by Suhani Pancharas 4 years, 2 months ago

CBSE > Class 09 > Science

4 answers

Suzanne Smitha 4 years, 2 months ago

Golgi apparatus

Anushka Agarwal 4 years, 2 months ago

Golgi bodies / Golgi Vesicles / Golgi Apparatus You may write any one of these . All will be right!

Ashu Raz 4 years, 2 months ago

Golgi apparatus

Sarita Panda 4 years, 2 months ago

Golgi apparatue give rise to lysosomes

ANSWER

Which are the two cell organelles apart from nucleus which are capable of protein synthesis

Posted by Suhani Pancharas 4 years, 2 months ago

CBSE > Class 09 > Science

4 answers

Anushka Agarwal 4 years, 2 months ago

The answer will be : Mitochondrion and plastids (chloroplasts).

Pushprajsinh Rathod 4 years, 2 months ago

Endoplasmic reticulum and ribosomes are the two cell organelles apart from nucleus which are capable of protein synthesis.

Sharada B 4 years, 2 months ago

Endoplasmic reticulum and ribosome

Yogita Ingle 4 years, 2 months ago

Ribosomes and rough endoplasmic reticulum which are capable of protein synthesis.

ANSWER

To calculate the ratio of atoms of elements in a compound

Posted by Harsimran Kaur 4 years, 2 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

what is the animal tissues

Posted by Anu Sindhu 4 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Yogita Ingle 4 years, 2 months ago

Animal tissues are of four types, viz. epithelial tissue, connective tissue, muscular tissue and nervous tissue.

Epithelial Tissue:

The epithelial tissue forms the covering or lining of most of the organs. The cells of epithelial tissue are tightly packed and form a continuous sheet. There is small amount of cementing materials between the cells and no intercellular space is present. Permeability of the epithelial tissue plays a great role in exchange of materials among various organs it also plays an important role in osmoregulation. All epithelial tissues are separated by the underlying tissue by an extracellular fibrous basement membrane.

Connective Tissue:

The cells of a connective tissue are loosely scattered in a matrix. The matrix can be a fluid, jelly like, dense or rigid. The nature of matrix depends on the function a connective tissue serves.

Muscular Tissue:

Muscular tissue is composed of muscle cells. Muscle cells are specialized cells which have the capability to contract and expand. Due to contraction and expansion, muscles facilitate various kinds of movements in the body.

Nervous Tissue:

Nervous tissue makes the nervous system and is composed of specialized cells called neuron. A neuron can be divided into two distinct parts, viz. head and tail. The head is somewhat star-shaped and contains nucleus and some other cell organelles. This is called cyton. There are numerous hair-like outgrowths coming out of the cyton. These are called dendrites. The tail ends in axon terminals. Dendrites receive the nerve impulse, while axon relays the nerve signals.

Richa Shree 4 years, 2 months ago

A group of cell fuctioning together for making our body for performking well is known as tissue

ANSWER

A bus has a uniform accelaration of 3m/s^2 .What distance will it cover in 10sec after the start

Posted by Ahsan Ibrahim 4 years, 2 months ago

CBSE > Class 09 > Science

3 answers

Anushka Agarwal 4 years, 2 months ago

acceleration. =3m/s² time =10 s initial velocity(u)=0m/s v= at+u v=3×10+0 m/s v=30 m/s The distance covered is s metres (v² - u²) = 2as (30² - 0²)=2*3*s metres 900=6*s metres 900/6=s metres s= 150 metres. Ans: distance =150m

Sarita Panda 4 years, 2 months ago

150m/s

Almi Aami 4 years, 2 months ago

acceleration is uniform being 3m/s ^2. Hence a = 3 m/s^2 Time,t = 10 seconds Body starts from rest so u = 0 m/s We know that when u = 0 m/ s Distance , s = 1/2 a(t)^2 s = 1/2 × 3× 10 ×10 s= 150 m

ANSWER

What is cell and their functions.....?

Posted by Neha Singh 4 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Yogita Ingle 4 years, 2 months ago

A cell is defined as the smallest, basic unit of life that is responsible for all of life’s processes.
Functions of Cell

A cell performs these major functions essential for the growth and development of an organism. Important functions of cell are as follows:

Provides Support and Structure

All the organisms are made up of cells. They form the structural basis of all the organisms. The cell wall and the cell membrane are the main components that function to provide support and structure to the organism. For eg., the skin is made up of a large number of cells. Xylem present in the vascular plants is made of cells that provide structural support to the plants.

Facilitate Growth Mitosis

In the process of mitosis, the parent cell divides into the daughter cells. Thus, the cells multiply and facilitate the growth in an organism.

Allows Transport of Substances

Various nutrients are imported by the cells to carry out various chemical processes going on inside the cells. The waste produced by the chemical processes is eliminated from the cells by active and passive transport. Small molecules such as oxygen, carbon dioxide, and ethanol diffuse across the cell membrane along the concentration gradient. This is known as passive transport. The larger molecules diffuse across the cell membrane through active transport where the cells require a lot of energy to transport the substances.

Energy Production

Cells require energy to carry out various chemical processes. This energy is produced by the cells through a process called photosynthesis in plants and respiration in animals.

Shreyansh Jain 4 years, 2 months ago

In human body cell the smallest unit of lifecell make tissues tissues make organ organ make organ system and in last organ system make a human body so the cell function in human body is very high

ANSWER

why blood and lymph are called vascular connective tissue

Posted by Hanshika (Honey) 4 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Hanshika (Honey) 4 years, 2 months ago

This is not my ans

Ananya Meena 4 years, 2 months ago

Chapter matter in our surrounding ous ans

ANSWER

What is difference between evaporation and vaporisation?

Posted by Anand Rai 4 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Gaurav Seth 4 years, 2 months ago

Vaporization	Evaporation
Vaporization is defined as the transitional phase of a compound or an element and it occurs during the boiling or sublimation process.	Evaporation is nothing but a type of vaporization which mostly occurs at temperatures below the boiling point.
Vaporization can change the state of matter from a solid or liquid to a gas.	During evaporation, the liquid state of matter is turned directly into a gas.
Vaporization is usually a fast process and requires less amount of energy.	Evaporation is generally a slower process and requires more energy as the molecules have a high tendency to convert into the vapour phase.
During vaporization, all of the water can turn into gas.	As for evaporation, only the top level of water is turned into gas.
When vaporization occurs, molecules could come from below the surface when the liquid is boiling.	During evaporation, the molecules vaporize only from the surface of the liquid.

ANSWER

Where do the lipids and proteins constituting the cell membrane get synthesised

Posted by Rudra Pratap Nayak 4 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Yogita Ingle 4 years, 2 months ago

Lipids are synthesized in Smooth endoplasmic reticulum (SER) and the proteins are synthesized in rough endoplasmic reticulum (RER).

Sarita Panda 4 years, 2 months ago

Proteins get synthesised by Rough Endoplasmic Reticulum and Lipids get synthesised by Smooth Endoplasmic Reticulum.

ANSWER

Gravitational force between objects of small size and big size

Posted by Aditya Kumar 4 years, 2 months ago

CBSE > Class 09 > Science

1 answers

Rishabh Bisht 4 years, 2 months ago

Small objects are contain less volume of gas and big objects contain more volume than small objects

ANSWER

Describe the structure of amoeba

Posted by Prabhat Patel 4 years, 2 months ago

CBSE > Class 09 > Science

3 answers

Prabhat Patel 4 years, 2 months ago

Both of you are right

Pushprajsinh Rathod 4 years, 2 months ago

The body of Amoeba is irregular in shape. The outer covering of the body is the cell membrane. A prominent nucleus lies in the centre surrounded by cytoplasm.

Gaurav Seth 4 years, 2 months ago

The body of Amoeba is irregular in shape. The outer covering of the body is the cell membrane. A prominent nucleus lies in the centre surrounded by cytoplasm.

Structure of amoeba primarily encompasses 3 parts – the cytoplasm, plasma membrane and the nucleus.
The cytoplasm can be differentiated into 2 layers – the outer ectoplasm and the inner endoplasm

ANSWER

What is difference between helth and disease??

Posted by Anushka Singh 4 years, 2 months ago

CBSE > Class 09 > Science

3 answers

Kajal Sharma 4 years, 2 months ago

Healthy Disease Free A state of complete physical, mental and social well being State of the absence of discomfort in any part of the body It depends upon the individual as well as on social and environmental factors It depends on the individual only A healthy person will be disease-free A disease-free person may or may not be healthy A healthy person is energetic and is able to perform as per the requirement The performance of a disease-free person depends upon the environment and personal attitude

Kajal Sharma 4 years, 2 months ago

Healthy: A person is said to be healthy when his physical, mental, emotional, and psychological state is fit and fine. Disease-Free: A person is said to be disease-free when he is devoid of diseases.

Md Sainul Islam 4 years, 2 months ago

Health and disease. In the past health has been thought of as just the absence of disease, however today it is thought of more as the state of physical and mental wellbeing. ... A disease is a disorder that affects health by affecting an organism's body, organs, tissues or cells.