Question

which of the following is highly productive and is frequently covered in water?
taigas
tundras
wetlands
deserts

Explanation:

Taigas are boreal forests with coniferous trees, not frequently water - covered. Tundras have permafrost and low productivity. Deserts are arid with little water. Wetlands are areas that are frequently covered in water and are highly productive due to the rich ecosystem supported by the water, which includes diverse plant and animal life and nutrient - rich environments.

Answer:

wetlands (the option with "wetlands" as the text)