Question

1. what process does the purple arrow indicate?

atmospheric co₂
land plants
forest fire
land animals
soil
respiration.
photosynthesis.
combustion.
decomposition.

1. in a volcanic eruption, carbon dioxide dissolved in magma is released

Explanation:

Plants take in atmospheric \( CO_2 \) through photosynthesis. Respiration releases \( CO_2 \) from organisms. Combustion (like forest fire) burns organic matter to release \( CO_2 \). Decomposition breaks down organic matter, also releasing \( CO_2 \). The arrow shows \( CO_2 \) going into land - plants, which is photosynthesis.

Answer:

Photosynthesis.