Although the content of carbon dioxide in the air is very small, it is also an indispensable substance for human survival. Please answer: (1) Please talk about production and consumption in the atmosp

Although the content of carbon dioxide in the air is very small, it is also an indispensable substance for human survival. Please answer: (1) Please talk about production and consumption in the atmosphere. (1) In nature, the respiration of animals and plants is a process of consuming oxygen and exhaling carbon dioxide, while the photosynthesis of plants is a process of releasing oxygen from the absorption tower.

(2) Carbon dioxide does not burn or support combustion, and can be used to put out fires. It is also a raw material for plant photosynthesis and can be used as a gas fertilizer for plants. But if the carbon dioxide content in the air is too high, it will easily lead to the greenhouse effect, and people will suffocate or even die in the environment with too high carbon dioxide content;

(3) The bottom of a long-term unopened vegetable cellar often contains a lot of carbon dioxide. In order to test whether the carbon dioxide content in the vegetable cellar is too high, lighting experiments are generally carried out. If the carbon dioxide content is too high, the lamp will go out, mainly based on the nature that carbon dioxide does not burn or help combustion;

(4) The direct cause of the greenhouse effect is the burning of a large number of fossil fuels, which seriously damages forest vegetation. To reduce the content of carbon dioxide in the atmosphere, we must prevent it from the root causes, that is, changing the energy structure, developing and using clean energy instead of fossil fuels, planting trees in large quantities, and promoting the carbon cycle in nature, but the factory can do nothing about the measures to reduce carbon dioxide after sewage treatment reaches the standard.

(5)A, the lime slurry will harden when placed in the air, because calcium hydroxide reacts with carbon dioxide in the air to generate calcium carbonate;

B, rust is the result of the reaction of iron and water with oxygen in the air;

C. Crispy biscuits are softened in the air because they absorb water vapor in the air;

D, the easy deterioration of food in summer is caused by the slow oxidation of food, which is related to oxygen in the air and has nothing to do with carbon dioxide;

So the answer is: (1) respiration of animals and plants; Photosynthesis of plants;

(2) Fire extinguishing (or gas fertilizer, etc.). ); Causing the greenhouse effect (or suffocating people);

(3) lighting; Do not burn or support burning;

(4)D。

(5) A;