CTET Solved Paper - REET Feburary 2016

DIRECTIONS
Read the following passage and give the answer of next 5 questions .
Animals may become extinct in many ways. First of all they may evolve into another species and not really die out at all. For example, through time, many early form of horses and human beings have progressively changed by evolution into new species. The old species have changed and not really died out, so this is called pseudo extinction.
The second common way, in which animals have died out, is for a single species to disappear because of some local disturbance. Many animals that have very special diets, for example, could die out very easily if their source of food goes down. It is thought that certain species of dinosaurs were adapted to eating particular kinds of reedy plants. When these disappeared, those particular species of dinosaurs starved and died out.