Sound — Science STD 8 — Question

Name one Government agency which is involved in procuring food grains (like wheat and rice) from farmers and storing them properly.

In which sort of reproduction are gametes fuse?

Name one cell which can be seen easily with naked eye and one cell which can be seen only through a microscape.

Give one use of teflon.

In the following situations identify the agent exerting the force and the object on which it acts. State the effect of the force in each case. A load suspended from a spring while its other end is on a hook fixed to a wall.

Fill in the blanks: A group of stars that appear to form a pattern in the sky is known as a __ _________.

Endemic fauna is restricted to a particular area. Name few in India.

Why do we not hear the sound of an explosion on the surface of the moon?

Name the technique which is used to help a woman with blocked oviducts to have a baby.