VIDEO 4. Watch the clip What is the rainforest? and answer each of the following questions with NO MORE THAN THREE WORDS. 1. What is one essential requirement for the existence of a rainforest? ____________________________________________________ 2. How many countries are mentioned as having the largest amount of rainforest in the world? ____________________________________________________ 3. How much does it rain per year? ____________________________________________________ 4. What percentage of the world's population of plants and animals lives in the rainforests? ____________________________________________________ 5. How is the Amazon Rainforest on Earth? ____________________________________________________ 6. How many bridges are there over the Amazon river? ____________________________________________________ 7. Why would the rainforest never survive in the Arctic regions?