Question

Question was provided via image upload.

Explanation:

1. First blank: The sentence contrasts the fact that forests support oxygen levels with the surge in carbon dioxide. "Although" is the correct transitional word to show this contrast.
2. Second blank: The surge in carbon dioxide is a direct result of forest depletion, so "because of" (implied by the logical cause-effect relationship; the correct transition here links the effect to its cause) is the right choice.
3. First dropdown correction: The first sentence states greenhouse gases are released due to deforestation and fossil fuel combustion, so "even though" is incorrect; it should be "due to" or "as a result of", but based on the context of cause and effect, the correct replacement for the first dropdown is a phrase indicating cause, but from the provided options for the middle blank, we focus on the given dropdowns:

• First middle dropdown: "Although" is correct for contrast.
• Second blank (right dropdown, implied option): "because of" (or the equivalent cause transition) is correct to link carbon dioxide surge to forest loss.
• First top dropdown: Replace "even though" with "as a result of" (to show that greenhouse gases are released because of deforestation and fossil fuel burning, not in spite of it).

Answer:

1. Top dropdown (replace "even though"): as a result of
2. Middle dropdown: Although
3. Right dropdown: because of