BIOLOGY CH19 Plant Physiology — Science STD 9 — Question

Rhizobium fix atmospheric nitrogen and convert them to nitrates.

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

If a ray of light passes obliquely from one medium to another, it does not suffer any deviation.

• True

• False

How are galaxies classified?

Earthworm come out of their burrow during summer season.

General anaesthetics cause pain along with ‘reversible’ loss of consciousness

The magnetic field is a quantity that has magnitude only.

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

Lack of adequate fats in diet may result in low body weight

• True

• False

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

In everyday life, we use the term weight instead of mass.

• True

• False

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

The maximum number of electron in L Shell is 10.

• True

• False

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

Female mammals have mammary glands.

• True

• False