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DIRECTIONS: Read the passage (s) given below and answer the questions that follow.                              Passage - 1 Forests are a useful natural resource for us. Forests serve as green lungs and water purifying systems in nature. Forests provide shelter to many animals, birds and insects. Many animals like boar, bison, and jackal elephant live in the deeper areas of forests. And forests protect us from droughts and floods. Which of the following is a source of food and shelter for animals, birds and insects?

A) Uppermost layer

B) Lowest layer of vegetation

C) Different layers of vegetation

D) None of these