Balance of carbon dioxide and oxygen ：練習問題

Which of the following gases accounts for approximately 21% of dry air by volume and is essential for the process of respiration in most living things?

Why is carbon dioxide considered a "greenhouse gas" in the context of global climate change?

Industrialization has led to a significant increase in atmospheric carbon dioxide. Which of the following describes a positive feedback loop that further disrupts the gas balance as global temperatures rise?

Human activities such as burning fossil fuels and deforestation (the large-scale clearing of forests) both disrupt the balance of carbon dioxide and oxygen. Which statement best describes their combined impact on the atmosphere?

Predict the effect on the natural balance of gases in a sealed aquatic tank if a chemical is added that specifically inhibits the stomata-like structures (pores) of submerged plants without affecting their cellular respiration.

State the relationship between fossil fuel combustion and the disruption of the natural gas balance in the atmosphere.

In terms of energy conversion, how do the processes of photosynthesis and respiration complement each other to maintain the carbon cycle?

When a large forest is cleared and the trees are burned, it causes a double impact on the atmospheric balance of carbon dioxide and oxygen. Identify these two impacts in terms of the gas concentrations.

In Nature, the proportions of oxygen and carbon dioxide in the atmosphere are kept stable through various biological processes.

a) Write the word equation for the process in green plants that produces oxygen as a product. (1 point)
b) Identify the gas that is consumed by both plants and animals during the process of respiration. (1 point)
c) State the specific term used in the study materials to describe the state where the composition of gases in the air remains stable and unchanged under natural conditions. (1 point)

The natural balance of carbon dioxide and oxygen in the atmosphere is a result of a continuous cycle involving living organisms and environmental processes.

(a) Identify the two main biological processes that maintain this balance and write the word equation for each.
(b) Briefly explain how these two processes work together as a cycle to keep the atmospheric gas composition relatively constant.
(c) Global warming is a significant environmental issue today. Name the gas primarily responsible for this effect and state how its increasing concentration contributes to rising global temperatures.