The graph below shows the changes in two populations of herbivores in a grassy field. A possible reason for these changes is that
all of the plant populations in this habitat decreased
population $B$ competed more successfully for food than population $A$ did
population $A$ produced more offspring than population $B$ did.
population $A$ consumed the members of population $B$.
Which of the following is the logical sequence of primary succession in rocks?
Climax vegetation of a region is generally
In carbon cycle, source of carbon to plants is
Phosphorus is required for making
$I.$ shell
$II.$ bones
$III.$ teeth
Choose the correct option
Alpine forests of Himalayas have