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13.Biodiversity and Conservation
normal
The major man made biotic factor is
A
Ploughing
B
Grazing
C
Fire
D
Dairying
Solution
(c)Man is always most important biotic factor. He changes the environment by his activities regularly. e.g. by excessive cutting of trees, fire, domestication of plants and animals by causing different types of pollution etc.
Standard 12
Biology
