1. (i) With about 47,000 plant species, India occupies the tenth place in the world and fourth place in Asia in plant diversity. (ii)There are about ls, 15000 flowering plants in India-which account for 6 per cent of the world's total number of flowering plants. (iii) India also has 89,000 species of aRead more

    (i) With about 47,000 plant species, India occupies the tenth place in the
    world and fourth place in Asia in plant diversity.
    (ii)There are about ls, 15000 flowering plants in India-which account for 6
    per cent of the world’s total number of flowering plants.
    (iii) India also has 89,000 species of animals and a rich variety of fish in its
    fresh and marine waters.

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  2. (i) Hunting and poaching by greedy hunters for commercial purpose and their Profits. (ii)Pollution due to chemical and industrial waste and acid deposits. (iii) Introduction of alien species and reckless cutting of forests to bring land under cultivation. (iv) People have inhabited the areas by cleaRead more

    (i) Hunting and poaching by greedy hunters for commercial purpose and
    their Profits.
    (ii)Pollution due to chemical and industrial waste and acid deposits.
    (iii) Introduction of alien species and reckless cutting of forests to bring land
    under cultivation.
    (iv) People have inhabited the areas by clearing the forests. They are also
    responsible for the imbalance’

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  3. (i) We have selected our crops from the reserve of edible plants from a biodiverse environment. (ii) We have also experimented and selected many medicinal plants. (iii) The animals Were selected from large stocks to serve as milch animals. (iv) They also provided us draught power, transportation' meRead more

    (i) We have selected our crops from the reserve of edible plants from a biodiverse environment.
    (ii) We have also experimented and selected many medicinal plants.
    (iii) The animals Were selected from large stocks to serve as milch animals.
    (iv) They also provided us draught power, transportation’ meat and eggs’
    (v) The fish provide nutritive food.
    (vi) Many insects help in pollination of crops and fruit trees’
    Every species has a role to play in the ecosystem’

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  4. The common animals found in these forests are the Kashmir stag, spotted dear, wild sheep, jack rabbit, Tibetan antelope, yak, snow leopard, squirrels, shaggy horn wild ibex, bear and rare red panda, sheep and goats with thick hair

    The common animals found in these forests are the Kashmir stag, spotted dear, wild sheep, jack rabbit, Tibetan antelope, yak, snow leopard, squirrels, shaggy horn wild ibex, bear and rare red panda, sheep and goats with thick hair

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  5. In mountainous areas, the decrease in temperature with increasing altitude corresponding change in natural vegetation. (i) The foothills of the Himalayas -Shiwaliks have tropical moist deciduous flora. Sal and bamb00 are important trees up to 1,O00 m in height. (ii) They are followed by the wet hillRead more

    In mountainous areas, the decrease in temperature with increasing altitude corresponding change in natural vegetation.
    (i) The foothills of the Himalayas -Shiwaliks have tropical moist deciduous flora. Sal and bamb00 are important trees up to 1,O00 m in height.
    (ii) They are followed by the wet hill forests. They lie between about 1,000 to 2,000 mts. Important trees are oak, chestnut, ash, birch, etc.
    (ii) Between 1,500 and 3,300 m above sea level, there occur the well- known coniferous forests. Pine, deodar, silver fir, spruce, etc., are some leads to dominant trees.
    (iv) Above the coniferous forests lie the alpine forests at an altitude of about 3,600 m. Important trees are silver fir, pine, birch, etc.

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