Question

7 multiple choice 2 points what is a floodplain? a riverbank region where only deciduous trees grow a wetland formed by tidal mixing a low-lying, flat area adjacent to a river that floods periodically a frozen layer of soil beneath the tundra

Explanation:

To determine the correct definition of a floodplain, we analyze each option:

• The first option is incorrect as floodplains aren't defined by only deciduous trees.
• The second option is wrong because floodplains aren't formed by tidal mixing (that's more related to estuaries or tidal wetlands).
• The third option correctly describes a floodplain: it's a low - lying, flat area next to a river that gets flooded periodically as rivers overflow their banks.
• The fourth option is incorrect as it describes permafrost (the frozen layer in tundra), not a floodplain.

Answer:

C. A low - lying, flat area adjacent to a river that floods periodically