Improvement In Food Resources — Science STD 9 — Question

Define soil erosion.

Differentiate between the following:

Write function of nucleolus.

Give one example of protective tissue in plants.

What do you mean by ammonification?

Mention briefly the role of decomposers of cycling of materials.

1. Increased production and storage of food grains.
2. Easy access of people to the food grain.
3. People should have money to purchase the grains.
4. All of the above.

Expand the following abbreviations:

OPV.

Name one cause of non-communicable diseases.