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ANSWER

What is monsoon ?

Posted by Rakesh Kumar 7 years, 2 months ago

CBSE > Class 08 > Science

2 answers

Yogita Ingle 7 years, 2 months ago

A seasonal prevailing wind in the region of South and South East Asia, blowing from the south-west between May and September and bringing rain (the wet monsoon ), or from the north-east between October and April (the dry monsoon ).

Dhananjay Pareek 7 years, 2 months ago

Rainy season

ANSWER

Why is this solar sysyem so difficult

Posted by P Daksh Jain 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Parampreet Saini 7 years, 2 months ago

It is not difficult at all

ANSWER

While making an electromagnet the coil of wire is wrapped on metallic object ?

Posted by Rakesh Kumar 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Dhananjay Pareek 7 years, 2 months ago

To make electronic field around it

ANSWER

In the atmosphere the presence of oxygen is more than carbon dioxide than why trees are needed for oxygen purpuse

Posted by Aman Kumar 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Parampreet Saini 7 years, 2 months ago

Animals humans breathe oxygen and give out carbondioxide .Plants also breathe oxygen in night except some

ANSWER

Write a paragraph on each of following (a) preparation of soil

Posted by Singh Ajaypal 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Nisha Bhujade 7 years, 2 months ago

It is the first step of growing crops. It involves loosening and turning of soil. Preparation of soil involves the following two steps :1 ploughing and 2 levelling.

ANSWER

What is the thin outer zone in a candle flame called

Posted by Arshad Mansoori 7 years, 2 months ago

CBSE > Class 08 > Science

2 answers

Richa Shree 7 years, 2 months ago

Non luminious zone

Swarn Pathania 7 years, 2 months ago

Luminous zone

ANSWER

Why do we yawn?what causes us yawn?

Posted by Bhava Dharani 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Roshni Sood 7 years, 2 months ago

We yawn because when our body is not so active ,the amount of oxygen that reaches our brain becomes less. So,in order to transfer good amount of oxygen to our brain we yawn...

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What is sexual reproduction in humans?

Posted by Anish Ojha 7 years, 2 months ago

CBSE > Class 08 > Science

0 answers

ANSWER

What are nerve cell ?

Posted by Sourabh Patidar 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Daljit Singh 7 years, 2 months ago

Nerve cells are those cells who are transmit the massages to the brain

ANSWER

Why we can't fly

Posted by Vivek Kumar 7 years, 2 months ago

CBSE > Class 08 > Science

2 answers

Tanishq Bhadula 7 years, 2 months ago

Because our bones are heavy and full of mass whereas birds have lightwieght and hollow bones...Thus we even if we try to take off,we will fall.

Dhairya Gupta 7 years, 2 months ago

we don't have wings

3Thank You

ANSWER

How do we calculate light years?

Posted by Majony Begum 7 years, 2 months ago

CBSE > Class 08 > Science

3 answers

Aashi Joshi 7 years, 2 months ago

Light year= speed of light × time of one year expressed in seconds

Sajal Samveg 7 years, 2 months ago

Light years = number of years passed when you are traveling at the speed of light .

Vivek Kumar 7 years, 2 months ago

By kill the light

ANSWER

What is the chemical formula of ester ?

Posted by Sajal Samveg 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 7 years, 1 month ago

Esters are the compounds of general formula RCOORˈ, formed by the reaction of carboxylic acids with alcohols.
RCOOH + RˈOH → RCOORˈ (ester) + H₂O
They posses sweet odour so, that they are used in cosmetics.

ANSWER

What ar anaions?

Posted by Suraj Rajpurohit 7 years, 2 months ago

CBSE > Class 08 > Science

2 answers

Yogita Ingle 7 years, 2 months ago

An anion may be defined as an atom or molecule that is negatively charged. Anions has Non-Metal elements. Type of Electrode used Anode . Example : Sulfide, Oxide, Fluoride, Chloride

Piyush Singh 7 years, 2 months ago

Piyush

ANSWER

Newton's laws

Posted by Sajal Samveg 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 5 years, 10 months ago

Newton’s first law of motion states that a body at rest will remain at rest, and a body in motion will continue in motion in a straight line with a uniform speed, unless it is compelled by an external force to change its state of rest or of uniform motion.

The second law of motion states that the rate of change of momentum of an object is proportional to the applied unbalanced force in the direction of force.

The third law of motion states that when one object exerts a force on another object, the second object instantaneously exerts a force back on the first. These two forces are always equal in magnitude but opposite in direction. The two opposing forces are also known as action and reaction forces.

ANSWER

What is animal cell original

Posted by Manish Jadon 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 5 years, 7 months ago

Animal cells are eukaryotic cells which are surrounded by plasma membrane. It contains the nucleus and organelles that are membrane bound. The cell organelles have a vast range of functions to perform like hormone and enzyme production to providing energy for the cells.

ANSWER

Why we avoid to use umbrella during thunderstorms

Posted by Ruchika Raj 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 7 years, 2 months ago

An umbrella can increase your chances of being hit by lightning if it makes you the tallest object in the area. A metal rod directs electric current into the body and hence the person carrying the umbrella will get a severe electric shock.

ANSWER

What are ribosomes and what is it's function

Posted by Kavita Mundra 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 7 years, 2 months ago

Ribosomes are the cell organelles found inside the cell and composed of RNA and Proteins. They may found suspended in the cytosol, called free ribosomes or bound to the endoplasmic reticulum, called bound ribosomes. They help in protein synthesis.

Ribosomes and protein synthesis function:
Ribosomes are typically composed of two subunits, a large subunit and a small subunit. These two subunits join together when the ribosome attaches to messenger RNA (mRNA) during protein synthesis. Ribosomes along with another RNA molecule, transfer RNA (tRNA), help to translate the protein-coding genes in mRNA into proteins.

ANSWER

What is meant by organless chapter 8 cell structure and function

Posted by Kavita Mundra 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Sajal Samveg 7 years, 2 months ago

Organelles simply means different structural parts present in the cell to make the cell function .

ANSWER

What is Electrostatic Force?

Posted by Chetna Pandey 7 years, 2 months ago

CBSE > Class 08 > Science

4 answers

Pooja Kumari 7 years, 2 months ago

The force between two charged bodies is called electrostatic force. It is a non contact force. The electrostatic force can be attractive or repulsive.

Nisha Bhujade 7 years, 2 months ago

The force exerted by charge body on another charged or uncharged body is known as.........

Yogita Ingle 7 years, 2 months ago

Electrostatic force is the force exerted by a charged body on another charged or uncharged body. Eg: Take a comb and brush it on a hair 3-4 times and then take it near some small bits of paper. Donot touch the comb with the paper. The bits of paper would get attracted to the comb. This is because the comb is charged because of the rubbing on your hair and it attracts uncharged objects like paper.

Maitri Singh 7 years, 2 months ago

The force exerted by charge body on another charged or uncharged body is known as electrostatic forse

ANSWER

What is Muscular Force?

Posted by Chetna Pandey 7 years, 2 months ago

CBSE > Class 08 > Science

5 answers

Pooja Kumari 7 years, 2 months ago

This is the physical force exerted by muscles on various objects. Example of muscular force include a horse pulling a cart , a boy pushing a ball etc.

Nisha Bhujade 7 years, 2 months ago

The force resulting due to the action of muscles is called muscular force . Example: lifting a bucket,an elephant carrier load

Yogita Ingle 7 years, 2 months ago

Muscular force is the force applied using parts of the body like arms or legs. It is force that results due to the action of muscles, and is a contact force, since there is a contact between the surfaces. Muscular force is needed whenever movement of the body occurs. Walking, lifting, getting up from a chair, crossing a leg, etc. all require muscular force.

Bhumi Thapa 7 years, 2 months ago

Who was Appo

Chetna Pandey 7 years, 2 months ago

The force resulting due to the action of muscles is known as the muscular force.

ANSWER

What are harmful effects of fertilizers

Posted by Madhavi Ahirwar 7 years, 2 months ago

CBSE > Class 08 > Science

2 answers

Yogita Ingle 7 years, 2 months ago

Disadvantages of Fertilisers:

Excessive use of fertilizers can make the soil unfertile.
Harmful chemicals in fertilizers pollute the soil and groundwater.

Kavita Mundra 7 years, 2 months ago

Fertilizers harmful effect is that it is major problem that cause water pollution

ANSWER

What is the difference between rods and cones

Posted by Abhikhya Dinda 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 7 years, 2 months ago

Rods and cones are the two types of photoreceptors in the human retina. Rods and cones are essential for vision. Rods and cones together are able to detect movement, light and colour, and relay that information back to the brain.

Rods: Rods are highly sensitive cells located in the outer area of the retina (the lining of the back of the eye). They are used in areas of dim light and are most acute to light, shape and movement changes. Rods do not detect colour. Rods help people to see in low light.

Cones: Cones are located in the central fovea (central area of the retina). They are less sensitive than rods and require bright lighting. Cones are central to our ability to see colour. Cones help people see colours and have depth perception.

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Extra question answer of chapter12 * (friction)

Posted by Yashika Sharma 7 years, 2 months ago

CBSE > Class 08 > Science

0 answers

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Newton 1st law of motion

Posted by Nirmala Sharma 7 years, 2 months ago

CBSE > Class 08 > Science

2 answers

Nirmala Sharma 7 years, 2 months ago

R.P Qureshi 7 years, 2 months ago

A body is in rest will remain at rest and a body is in motion will continue in motion in a straight line with uniform speed. Unless acted by an unbalanced force. A body at rest or to keep moving with same velocity without any external force is applied on body. The first law of motion is also known as the law of inertia.

ANSWER

What is friction easy definition?

Posted by Hari Prasad Yedhoti 7 years, 2 months ago

CBSE > Class 08 > Science

1 answers

Ameera K 7 years, 2 months ago

The force arising in between the surfaces of contact of objects

ANSWER

What are genes? Where are genes located??

Posted by Diya Mundra 7 years, 2 months ago

CBSE > Class 08 > Science

3 answers

Ameera K 7 years, 2 months ago

Gene is a unit of inheritance in living organisms.It is located in chromosomes

Suhani Jaiswal 7 years, 2 months ago

Chromosomes carry ganes .ganes contain information necessary to transfer the character is of present an offspring

4Thank You

Yogita Ingle 7 years, 2 months ago

Genes are the segments of DNA which are responsible for characteristic features of an organism. Chemically genes are acidic in nature since they are nucleic acids which constitute DNA.

Genes are located on chromosomes in linear sequence and at fixed positions.