Tissues — Science STD 9 — Question

Infrasound can be heard by:

The electrons revolve around the nucleus only in certain fixed paths called:

Which of the following is the high milk yielding variety of cow?

Earth goes round the SUN with:

A merry-go-round is rotating about a vertical axis at the rate of 60rev/min. If the distance of a man from its axis is 2m, his linear speed is:

The atomic number of an element E is 16. The number of electrons in ion E^2- will be:

1. 16
2. 18
3. 15
4. 14

Minamata human disease is caused by pollution of water by:

1. Cadmium.
2. Lead.
3. Mercury.
4. Arsenic.

When a car runs on a circular track with a uniform speed, its velocity is said to be changing. This is because:

Which of the following does not possess the ability to do work not because motion?

1. A sparrow flying in the sky.
2. A sparrow moving slowly on the ground.
3. A sparrow in the nest on a tree.
4. A squiral going up a tree.

Trabeculae is the transformation of: