Question

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

Explanation:

Wetlands are areas frequently covered by water and are highly productive ecosystems due to abundant water and nutrients supporting diverse plant and animal life. Taigas are cold - forested regions, tundras are cold treeless regions, and deserts are arid regions, none of which match the description as well as wetlands.

Answer:

wetlands