Question

question 21 (1 point) which process removes carbon dioxide (co₂) from the atmosphere? a photosynthesis b respiration c combustion d deposition question 22 (1 point) which two processes release co₂ into the atmosphere? a deposition and photosynthesis b photosynthesis and respiration c weathering and photosynthesis d respiration and combustion question 23 (1 point) what does deposition form over long periods of time? a carbohydrates in plants b carbon dioxide gas c fossil fuels like coal and petroleum d carbonate rocks in oceans

Explanation:

• For Question 21: Photosynthesis is the process by which plants use sunlight, water, and carbon - dioxide to produce glucose and oxygen, thus removing carbon - dioxide from the atmosphere. Respiration releases carbon - dioxide, combustion of fuels releases carbon - dioxide, and deposition is not a process that removes carbon - dioxide from the atmosphere.
• For Question 22: Respiration is the process by which organisms break down glucose to release energy, producing carbon - dioxide as a by - product. Combustion of fossil fuels and other materials also releases carbon - dioxide. Photosynthesis removes carbon - dioxide, and deposition is not a major source of carbon - dioxide release.
• For Question 23: Over long periods of time, the deposition of organic matter and sedimentation can lead to the formation of fossil fuels like coal and petroleum. Carbohydrates in plants are formed through photosynthesis, carbon - dioxide gas is not formed by deposition, and carbonate rocks in oceans are formed through different chemical and biological processes related to the carbon cycle but not directly by general deposition in the sense of carbon sequestration over time to form energy sources.

Answer:

Question 21: A. Photosynthesis
Question 22: D. Respiration and combustion
Question 23: C. Fossil fuels like coal and petroleum