Consider the following:
1. Photosynthesis
2. Respiration
3. Decay of organic matter
4. Volcanic action
Which o

Question

Consider the following:
1. Photosynthesis
2. Respiration
3. Decay of organic matter
4. Volcanic action
Which of the above add carbon dioxide to the carbon cycle on Earth?

Accepted Answer

The correct answer is C because respiration, decay of organic matter, and volcanic action are processes that release carbon dioxide into the atmosphere, thereby adding it to the carbon cycle.

1. Respiration: Living organisms consume oxygen and release carbon dioxide as a byproduct of energy production.
2. Decay of organic matter: When plants and animals die, decomposers like bacteria and fungi break down the organic tissue, releasing carbon dioxide in the process.
3. Volcanic action: Volcanic eruptions release gases stored deep within the Earth, including significant amounts of carbon dioxide.

In contrast, photosynthesis removes carbon dioxide from the atmosphere. During photosynthesis, green plants use sunlight to convert carbon dioxide and water into carbohydrates, effectively acting as a carbon sink rather than a source. Therefore, statement 1 is excluded, making 2, 3, and 4 the correct combination.

Answer

1 and 4 only

Answer

2 and 3 only

Answer

2, 3 and 4 only

Answer

1, 2, 3 and 4

Consider the following: 1. Photosynthesis 2. Respiration 3. Decay of organic matter 4. Volcanic action Which of the above add carbon dioxide to the carbon cycle on Earth?

Explanation

Related questions