(2013 Fangzi District Simulation) In recent years, typhoons and rains have continued in some areas, while others have become drier; abnormal weather has appeared all over the world, highlighting severe

(1) The intensification of the greenhouse effect is mainly caused by the modern industrial society burning too much coal, oil and natural gas. After these fuels are burned, a large amount of carbon dioxide gas is released into the atmosphere. Carbon dioxide is also called a greenhouse gas. The main way carbon dioxide is consumed is through absorption by plants for photosynthesis. Green plants use light energy through chloroplasts to convert carbon dioxide and water into organic matter that stores energy and releases oxygen. This process is called photosynthesis, which is the raw material for photosynthesis. It is carbon dioxide and water, the products are organic matter and oxygen, the condition is light, the place is chloroplast, the reaction expression is: carbon dioxide + water light energy chloroplast organic matter (storage energy) + oxygen.

(2) The [C] process in the picture is that the remains of animals and plants are decomposed by bacteria and fungi to form inorganic substances such as carbon dioxide, water and inorganic salts, which are then returned to the environment and used by plants. It can be seen that Bacteria, fungi, etc., as decomposers, promote the material cycle in nature; while animals of type A and B feed on plants directly or indirectly, and as consumers, they also promote the material cycle. Green plants use light energy through chloroplasts to convert carbon dioxide and water into organic matter that stores energy and releases oxygen. This process is called photosynthesis; cells use oxygen to decompose organic matter into carbon dioxide and water, and convert the energy stored in the organic matter. The process in which energy is released to supply the needs of life activities is called respiration. Analyzing the diagram shows that: A uses carbon dioxide and other substances to produce oxygen. At the same time, A provides food for B, which should be photosynthesis; process B produces carbon dioxide, which should be respiration. effect.

(3) The relationship between producers and consumers is mainly the relationship between eating and being eaten, thus forming a food chain. Cows feed on grass, and the two have a predatory relationship. The efficiency of energy transfer in the ecosystem is 10% to 20%. Therefore, if the cow's weight increases by 1 kilogram, it must consume at least 1÷20%=5 kilograms of grass.

(4) The structural level of the plant body is: cell → tissue → organ → plant body; the structural level of the animal body is: cell → tissue → organ → system → animal body. Animal bodies have more structural levels than plant bodies, including systems. Grass is a plant and cow is an animal, so at the structural level, the difference between the two is whether there is a system or not.

(5) The intensification of the greenhouse effect is mainly caused by the burning of too much coal, oil and natural gas in modern industrial society. After these fuels are burned, a large amount of carbon dioxide gas is released into the atmosphere. Carbon dioxide is also called a greenhouse gas. Since the carbon cycle is global, in order to slow down the emission of carbon dioxide gas, the United Nations formulated the "Kyoto Protocol". According to the graph analysis, it can be seen that the main cause of global warming is the large amount of carbon dioxide produced by the combustion of coal, oil, natural gas, etc.

So the answer is (1) carbon dioxide; carbon dioxide + water light energy chloroplast organic matter (storage energy) + oxygen;

(2) saprophytic bacteria and fungi; consumers; photosynthesis ; Respiration;

(3) Predation; 5;

(4) There are more cows in the structural level of the system;

(5) Coal, oil, The combustion of natural gas, etc. produces a large amount of carbon dioxide.