List any two activities of WHO.

Human activities interfere with carbon cycle. List any two such activities.

Peer pressure plays a negative role in triggering smoking habits in adolescents. As a school captain list any two activities you would like to organize with the help of senior students of your school and any other two activities you would like your school authorities to organize for the students to tackle this problem. Explain how theHe activities will help in doing so.

Global carbon is fixed in the biosphere through photosynthesis. (a) Explain any two ways by which carbon is returned to the atmosphere through natural processes, (b) List any two human activities that have influenced the carbon cycle in nature.

Column I lists a few activities of living organisms and column II the activity of cells related to them. Match the items in the two columns.

List any two characters of Pea plants used by Mendel in his experiments other than height of the plants and the color of the seed.

List any three human activities which would lead to an increase in the carbon dioxide content of air.

List any three human activities that you think would lead to air pollution.

List four major activities of the Red Cross.

(a) Expand VNTRs and describe its role in DNA fingerprinting (b) List any two applications of DNA finger printing techniques

List any four objectives of Wildlife Protection Act, 1972 (amended in 1991).