BIOLOGY CH21 Nutrition and Health — Science STD 9 — Question

Scientific term used to represent the bending of roots towards water is called geotropism.

Prions are found in neurons and are cone-shaped.

The distance between Saturn and Uranus is about 10 times that between Earth and Mars.

Mirage is an example of refraction and total internal reflection of light.

State whether true or false. If false, correct the statement.

Distance covered by a particle never becomes zero but displacement becomes zero.

• True

• False

We cannot see the functions of Software.

State whether true or false. If false, correct the statement.

Aspirin is composed of 60% Carbon, 4.5% Hydrogen and 35.5% Oxygen by mass. Aspirin is a mixture.

• True

• False

In a food pyramid, fat and oil are placed at the bottom.

State whether true or false. If false, correct the statement.

The foundations of high-rise buildings are kept wide so that they may exert more pressure on the ground.

• True

• False

Carnauba wax is coated on apples to increase the taste.