What is the approximate ratio of animals and plants species in our country?

Give the approximate number of living animal and plant species.

What do farmers believe in our country?

At present how many types of medicinal plant is present in our country?

Give the approximate numbers of plant and animal species recorded in India.

What steps should be taken to improve production of food from animal sources in our country ?

What is being traditionally used as manure in our country ?

What is the most common pesticide used in our country?

(a) What is meant by a species ? Give two examples of plant species and two of animals. (b) State the various factors which could lead to the formation of new species.

Why is quarantine a must before introduction of a plant species from a different country ?