Tissues — Science STD 9 — Question

Major source of air pollution is:

1. Burning of fossil fuels.
2. Burning of wood.
3. Burning of biogas.
4. Burning of dung cakes.

Class is a category between:

1. Phylum and order.
2. Kingdom and phylum.
3. Order and family.
4. Family and genes.

Percolation tanks and wells are used for:

1. Irrigation.
2. Harvesting of flood water.
3. Supply of drinking water.
4. All the above.

Maximum milk yielding buffalo is:

The fungus disease causing maximum death of poultry bird is:

Inland fisheries refer to:

Each cell of unicelluler organism performs certain functions such as _________.

A group of cells alike in form, function and origin are called __________.

Which of the following is leguminous green fodder commonly available in winter?

“Drones” in the honeybee colony are born out from;

1. Unfertilized eggs.
2. Fertilized eggs and well nourished larvae.
3. Same as worker bee.
4. Fertilized eggs giving heat treatment.