What are the causes of extinction of species? Discuss briefly.

Explain various factors causing habitat loss.

How does biodiversity help in maintenance of soil, air and water quality? Explain.

Discuss the importance of biodiversity in providing plant and animal food.

Explain cultural and religious values of biodiversity giving suitable examples.

Describe various zones of a lake biome.

Discuss important features of Tundra biome.

What is species richness? Briefly explain its various types

List various strategies which can be used to conserve water.

What is rock cycle? Briefly explain three types of rocks.

Discuss the importance of solar energy giving its advantages.

List the adverse effects of soil salinity and alkalinity.

Give a brief account of major rivers of India.

Explain various types of fertile soils in the Indian context.

Discuss the merits of post harvest technology and explain the measures required to use this technology for attaining better environmental quality and improved productivity.

Describe any five components of alternative agriculture.

Discuss the various dimensions of technology transfer and the appropriate technologies for resource poor farmers.

What is organic farming? Describe its various steps.

Explain the role of integrated farming system in sustaining overall agricultural production.

Outline the measures the respective governments can take to accelerate the growth of agricultural sector in the South Asian countries.