If the curved surface area and the radius of a cylinder

In which part of the chloroplast does the light reaction occur?

When milk is churned, the cream separates from it clue to:

A man inside an artificial satellite feels weightlessness because the force of attraction due to earth is –

Which of the following is an example of symbiosis?

Which of the following instruments is used to measure humidity?

Which of the following compounds form nitrites with nitrous acid?

Which disease is caused by Plasmodium parasite?

A boy sitting in a train moving with a uniform velocity drops a coin outside. A man standing outside the train will find the trajectory of the coin to be -

Which disease is caused due to the deficiency of iodine?