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ANSWER

What is the potential energy

Posted by Shubham Tiwari 4 years, 7 months ago

CBSE > Class 09 > Science

6 answers

Himashi Shrivastav 4 years, 7 months ago

The potential energy of a body is due to its higher position above the earth and it is equal to the work done on the body against gravity in moving the body to that position

Sakhuja Ansh 4 years, 7 months ago

The energy possessed by an object due to its position

Akhil Singh 4 years, 7 months ago

Mgh

Shashti Kapgate 4 years, 7 months ago

An object can store energy as the result of its position

3Thank You

Daljit Singh 4 years, 7 months ago

Potential energy is stored energy of an object has because of its position

Anupam Mishra 4 years, 7 months ago

Ans. The energy due the motion of an object

ANSWER

A silver ornament of mass m gram is polished with gold equivalent to 1% of mass of silver. Compute the ratio of the number of atoms of gold and silver in the ornament

Posted by Nishikant Selokar 4 years, 7 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Numerical of gravitation chapter

Posted by Ayush Singh 4 years, 7 months ago

CBSE > Class 09 > Science

2 answers

Utkarsh Oberoi 4 years, 7 months ago

Ankhein fatgai hai kya book khol

Daniya Khatoon 4 years, 7 months ago

Book me hai

ANSWER

Which of the following are physical changes

Posted by Inzmam Ul Haq Ansari 4 years, 7 months ago

CBSE > Class 09 > Science

2 answers

Utkarsh Oberoi 4 years, 7 months ago

Bro koi option to de

Prisha Gupta 4 years, 7 months ago

Options?

ANSWER

Define monera

Posted by Lord Satya 4 years, 7 months ago

CBSE > Class 09 > Science

2 answers

Hajra ? 4 years, 7 months ago

Monera is a kingdom that contains unicellular organism with a prokaryotic cell such as bacteria

Yogita Ingle 4 years, 7 months ago

Monera do not have a defined nucleus or organelles.
They do not show multi-cellular body designs.
Some organisms belonging to this group have cell walls.
The organisms belonging to this group are either autotrophs (produce their own food) or heterotrophs (Consume the food from the environment).
Examples of organisms belonging to this group are bacteria, blue-green algae or cyanobacteria, and mycoplasma.

ANSWER

What is tintakals

Posted by Ojas Singh 4 years, 7 months ago

CBSE > Class 09 > Science

1 answers

Meghna Thapar 4 years, 6 months ago

Tentacle is a slender, flexible limb or appendage in an animal, especially around the mouth of an invertebrate, used for grasping or moving about, or bearing sense organs.

ANSWER

Sample paper for science class 9

Posted by Akriti Maurya 4 years, 7 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

How does ear works

Posted by Harshit Narra 4 years, 7 months ago

CBSE > Class 09 > Science

1 answers

Meghna Thapar 4 years, 7 months ago

The ears are the sense organs which help us in hearing sound. It consists of three compartments – outer ear, middle ear and inner ear.

The outer ear consists of a broad part called pinna having a long passage called ear canal. At the end of the ear canal is a thin, elastic and a circular membrane called ear drum. It is also called tympanum. The outer ear contains air.
The middle ear contains three small and delicate bone called hammer, anvil and stirrup. These bones are linked to one another. The middle ear transmits the amplified pressure variations received from the sound wave to the inner ear.
In the inner ear, the pressure variations are turned into electrical signals by the cochlea. These electrical signals are sent to the brain via the auditory nerve, and the brain interprets them as sound.

ANSWER

What are the minerals present in the body of Sponge that provides dignity?

Posted by Piyush Ji 4 years, 7 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

The atom having mass 56amu

Posted by Anish Talreja 4 years, 7 months ago

CBSE > Class 09 > Science

1 answers

Ishpinder Dhillon 4 years, 7 months ago

It is not amu but u

ANSWER

identify the odd one out of these sodium carbon aluminium iron

Posted by Sakshi Keshwani 4 years, 7 months ago

CBSE > Class 09 > Science

1 answers

Meghna Thapar 4 years, 3 months ago

Sodium, aluminium and iron are metals. They are electropositive since they have tendency to lose electrons to form positive ions. Carbon is neither an electropositive nor an electronegative element because of its position midway in the second horizontal row of the periodic table, it therefore is more likely to share electrons than to gain or lose them. Hence, carbon is the odd one out of the mentioned metals.

ANSWER

What is the formula of distance

Posted by Aman Jattana 4 years, 7 months ago

CBSE > Class 09 > Science

4 answers

Anshu Kumar 4 years, 7 months ago

•S = ut+1/2 ×at^2 •S = v × t •S = v^2-u^2 upon 2a

Utkarsh Oberoi 4 years, 7 months ago

Distance = speed × time

Ishpinder Dhillon 4 years, 7 months ago

Distance = speed/ time

Amlan Anshuman Nayak Tutul 4 years, 7 months ago

If a body starts from rest what can be said about the accelaration of the body

ANSWER

H$=45 .h=

Posted by Ankit Kumar Nayak Nayak 4 years, 7 months ago

CBSE > Class 09 > Science

1 answers

Ankit Kumar Nayak Nayak 4 years, 7 months ago

12h

ANSWER

What is known as the kitchen of the plant cell?

Posted by Muskaan ? 4 years, 7 months ago

CBSE > Class 09 > Science

4 answers

Renu Bala 4 years, 7 months ago

Plastids

Muskaan ? 4 years, 7 months ago

I think it is plastids because it has chlorophyll important for photosynthesis

Suryaveer Singh Chauhan 4 years, 7 months ago

Lysosomes

Riya Chauhan 4 years, 7 months ago

Vacuoles

ANSWER

Why does the three states of matter exist?

Posted by Muskaan ? 4 years, 7 months ago

CBSE > Class 09 > Science

2 answers

Muskaan ? 4 years, 7 months ago

Because of variarions in their characteristics of particles of matter.

Riya Chauhan 4 years, 7 months ago

Solid,liquid and gas

ANSWER

Pole of nitrogen fixation bacteria lightening

Posted by Utsav Mishra 4 years, 7 months ago

CBSE > Class 09 > Science

1 answers

Saksham Gupta 4 years, 7 months ago

Nitrogen fixation is a process by which molecular nitrogen in the air is converted into ammonia (NH 3) or related nitrogenous compounds in soil.[1] Atmospheric nitrogen is molecular dinitrogen, a relatively nonreactive molecule that is metabolically useless to all but a few microorganisms. Biological nitrogen fixation converts N 2 into ammonia, which is metabolized by most organisms.

ANSWER

Mention two ways in which desirable characteristic can be incorporated into crop variety

Posted by Utsav Mishra 4 years, 7 months ago

CBSE > Class 09 > Science

1 answers

Meghna Thapar 4 years, 7 months ago

Varieties or strains of crops can be selected by breeding for various useful characteristics such as disease resistance, response to fertilisers, product quality and high yields. Crop variety improvement is the manipulation of crop plants for increasing their yield and improving quality. Various approaches which are used for genetic improvement of crop plants are referred as plant breeding methods. These involve three processes:

(i) Introduction – This refers to the transportation of crop plants from the place of cultivation to the place where grown earlier.

(ii) Selection – This process involves the selection of most desirable offspring of a variety of plant for controlled propagation.

(iii) Hybridisation – It involves the crossing between genetically dissimilar plants to produce a new kind. Crossing may be between two different varieties (intervarietal cross - breeding) or between the two different species of the same genus (inter specific cross – breeding) and between different genera (intergeneric cross – breeding).

ANSWER

Main function function of following 1 lysosome 2 golgy body 3 nucleus 4 mythrocondria 5 cell membrane 6 plastids 7 endoplasmic retciulum 8 cell wall

Posted by Utsav Mishra 4 years, 7 months ago

CBSE > Class 09 > Science

1 answers

Rohit Singh 4 years, 7 months ago

1=digest waste products

ANSWER

What are milk animal

Posted by Utsav Mishra 4 years, 7 months ago

CBSE > Class 09 > Science

2 answers

Renu Bala 4 years, 7 months ago

The animals which provide us milk is called milk animal

Saksham Gupta 4 years, 7 months ago

Milk is a nutrient-rich, white liquid food produced by the mammary glands of mammals. It is the primary source of nutrition for infant mammals (including humans who are breastfed) before they are able to digest other types of food.[1] Early-lactation milk contains colostrum, which carries the mother's antibodies to its young and can reduce the risk of many diseases. It contains many other nutrients[2] including protein and lactose. Interspecies consumption of milk is not uncommon, particularly among humans, many of whom consume the milk of other mammals.[3][4]

ANSWER

Suggest two ways of treatment of an infectious disease

Posted by Utsav Mishra 4 years, 7 months ago

CBSE > Class 09 > Science

1 answers

Suryaveer Singh Chauhan 4 years, 7 months ago

By medicines and antibiotics

ANSWER

Give 3 limitation treatment of infection disease

Posted by Utsav Mishra 4 years, 7 months ago

CBSE > Class 09 > Science

1 answers

Meghna Thapar 4 years, 7 months ago

The approach of treatment of an infectious disease has three drawbacks:

Recovery of the patient may not be complete in certain cases.
Treatment requires time; hence the patient suffers from the disease and may be bedridden.
The patient serves as the source of spread of infection to others.

ANSWER

What is moleconcept

Posted by Mumthaz Sali 4 years, 7 months ago

CBSE > Class 09 > Science

1 answers

Samarth Srivastaw 4 years, 7 months ago

Mole = given mass ÷molecular mass

3Thank You

ANSWER

on adding 1ml of BAC12 solution to 2ml Na2So4 in test tube

Posted by Man Karan 4 years, 7 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

If i have a bottle of cold drink which gas is present in it

Posted by Kavya Singhrajput 4 years, 7 months ago

CBSE > Class 09 > Science

3 answers

Aniket Gupta 4 years, 7 months ago

Vansh Gundh 4 years, 7 months ago

C0²

Priya Sharma 4 years, 7 months ago

Don,t know

ANSWER

Difference between vaccinations and antibiotics

Posted by Utkarsh Oberoi 4 years, 7 months ago

CBSE > Class 09 > Science

1 answers

Meghna Thapar 4 years, 7 months ago

Antibiotics are the chemicals produced by microorganisms which at low concentration levels, have the ability to destroy or inhibit the growth of pathogens.
Vaccination is the administration of a vaccine to help the immune system develop protection from a disease.

ANSWER

Name the tissue that transport food in plants

Posted by Bindu Devi Kushwaha 4 years, 7 months ago

CBSE > Class 09 > Science

5 answers

Ishpinder Dhillon 4 years, 7 months ago

Zylem is correct

Utkarsh Oberoi 4 years, 7 months ago

Phloem

Raghav Gupta 4 years, 7 months ago

xylem

Yogita Ingle 4 years, 7 months ago

Food is transported by the phloem.

Explanation:

Phloem falls under the conducting tissue of the plants. The other type of conducting tissue is the xylem which is meant for transport of water and minerals. Phloem carries food in the form of a cell sap.

This is carried from the leaves which, are the kitchen of plants to the other non-green parts of the plants. This can be demonstrated through the ring girdling experiment where the phloem is cut off.

Prajwal Gaonkar 4 years, 7 months ago

Phloem