●answer #1 answer is B. The trees and plants are breathing in the carbon dioxide and out the oxygen. The oxygen in the air is making by the breath of them. #2 answer is C. Amazingly about twenty times larger forest is being destroyed in a month, also we can say that the size of one soccer play ground is being destroyed in one minute. It is decreasing the oxygen by destroying and cutting the forest. #3 answer is B. The energy to consume to make one aluminum can from the original resource is the same as the electricity to consume to watch TV three hours and 8 minutes. The electricity to save by the recycle of the aluminum is same as the one to consume to watch TV three hours. It saves 96% of the energy by the recycle of cans compared from the energy used from the original resource. #4 answer is B. It is the same thing to throw away the plastic waster anywhere as to scatter the energy to make the plastic and the plastic is easy to decompose by the sun shine and have bad affects to the animals and the nature. Sometimes the sea turtles and sea birds eat the plastic and die and the decomposed plastic contaminated the sea water. There are some solutions to be researching in the world now. For examples, the plastic waste is buried under the ground not to affect to the nature or burn them not to produced the poised gas and the burning heat is used for the electricity and boiled water. And recycle by making the same kinds plastic bottles. #5 answer is C. The ice of north and south pole start melting by the phenomenon of the global warming and it make to up the sea water level. This causes the sink of the small islands of the pacific. Also it causes the unusual weather, the change of the sea water temperature and decrease of the harvest of agricultural plants. #6 answer is B. The population of the earth is about 6 billion. All of us have own life and are using the energy and producing the waste every day. Then the environmental issues origin from every body, and this is not to leave to the other person. We, every body consider this issue by ourselves in a global size and resolve in our community to cooperate the individual to expand to all people in the world. Please keep them in your minds and make it enlighten to the activities of all over the world.