1. Give reasons why India's natural vegetation has undergone many changes?
Ans. India's natural vegetation has undergone many changes due to the:
(a) growing demand for cultivated land.
(b) development of industries and mining.
(c) urbanisation and overgrazing of pastures.
2. 'Bird life in India is colourful'. Explain.
Ans. (a) The country has about 2,000 species of birds. Some of the wetlands of India are popular with migratory birds.
(b) Peacocks, Pheasants, ducks, Parakeets, cranes and pigeons are some of the birds inhabiting the forests and the wetlands of the country.
(c) In places where the desert merges with the sea, like the Rann of Kuchchh flamingos with their pink plumage, come in large numbers.
3. Name any three medicinal plants of India and mention for what they are used.
Ans. (a) Jamun: The juice has digestive properties. The powder of the seed is used for curing diabetes.
(b) Arjun: The fresh juice of leaves is a cure for earache and regulate blood pressure.
(c) Tulsi plant: It is used to cure cough and cold.
Ans. India's natural vegetation has undergone many changes due to the:
(a) growing demand for cultivated land.
(b) development of industries and mining.
(c) urbanisation and overgrazing of pastures.
2. 'Bird life in India is colourful'. Explain.
Ans. (a) The country has about 2,000 species of birds. Some of the wetlands of India are popular with migratory birds.
(b) Peacocks, Pheasants, ducks, Parakeets, cranes and pigeons are some of the birds inhabiting the forests and the wetlands of the country.
(c) In places where the desert merges with the sea, like the Rann of Kuchchh flamingos with their pink plumage, come in large numbers.
3. Name any three medicinal plants of India and mention for what they are used.
Ans. (a) Jamun: The juice has digestive properties. The powder of the seed is used for curing diabetes.
(b) Arjun: The fresh juice of leaves is a cure for earache and regulate blood pressure.
(c) Tulsi plant: It is used to cure cough and cold.
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