Read the following information and answer the related questions. Acid rain, greenhouse effect, biodiversity loss, land desertification, chemical pollution, polar ozone hole.

(1), carbon dioxide gas has the function of heat absorption and insulation. The result of its increase in the atmosphere is an invisible glass cover, which prevents the heat radiated by the sun from spreading to outer space. As a result, the surface of the earth becomes warmer. Therefore, carbon dioxide is also called greenhouse gas. The aggravation of the greenhouse effect is mainly due to the excessive burning of coal, oil and natural gas in modern industrial society, which releases a lot of carbon dioxide gas into the atmosphere after burning.

Acid rain is caused by the extensive use of fossil fuels such as coal, oil and natural gas with high sulfur content. After combustion, the gas containing sulfur dioxide undergoes complex chemical reactions in the atmosphere to form sulfuric acid or nitric acid aerosol, or it is captured and absorbed by clouds, rain, snow and fog and falls to the ground.

(2) Acid rain harms aquatic organisms. It acidifies the water quality of many rivers and lakes, leading to the extinction of many acid-sensitive aquatic organisms. The lake lost its ecological function and eventually became a dead lake. Acid rain can also kill plankton in water and destroy aquatic ecosystem. In addition, acidified water sources threaten people's health, and acid rain is extremely harmful to living things, so it is called "death in the air".

(3) Biodiversity includes biodiversity, genetic diversity and ecosystem diversity. "Multi-species, one planet, one future", in which "multi-species" refers to biodiversity.

(4) "Low-carbon life" refers to reducing the energy consumed in daily life as much as possible, so as to reduce the emission of carbon, especially carbon dioxide, reduce the pollution to the atmosphere, slow down the ecological deterioration, and change the details of life mainly from three aspects: electricity saving, solar terms and recycling. For example, advocating walking nearby, long-distance bus or subway ride, short-distance cycling or walking can greatly reduce the emission of carbon dioxide and other gases, which is conducive to reducing the burden.

So the answers are: (1)A and B.

(2)B

(3) Answer

(4)①; ③; ②