Migratory birds fly to far away areas during a particular time of the year. Which of the following conditions present in their habitat during that time are responsible for this behaviour?
(i) Unavailability of food
(ii) Extreme weather conditions
(iii) Over-crowding
(iv) Lack of nesting areas

i i

and

i i i

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i

and

i i i

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i

and

i v

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i

and

i i

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Solution

The correct option is D $i$ and $i i$
The dwelling of a species in a particular area depends on the physical, biological, and climatic conditions. The adverse conditions due to any climatic variations or scarcity of food force the birds to migrate to far away areas in search of better living conditions. The migration of the species may lead to a decrease in the biodiversity of that particular region.

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Migratory birds fly to far away areas during a particular time of the year. Which of the following conditions present in their habitat during that time are responsible for this behaviour?(i) Unavailability of food(ii) Extreme weather conditions(iii) Over-crowding(iv) Lack of nesting areas

Migratory birds fly to far away areas during a particular time of the year. Which of the following conditions present in their habitat during that time are responsible for this behaviour?
(i) Unavailability of food
(ii) Extreme weather conditions
(iii) Over-crowding
(iv) Lack of nesting areas