Artificial levees are mounds of earth (or sometimes concrete walls) that increase the height of a stream's banks. a. True
b. False

a. True

Explanation:

A levee is the ridge that is either constructed naturally or artificially to control the level of the water.

Artificial levees are the ridge created artificially by humans that helps in regulating the water level. It is build parallel to the river and especially in the flood region. It controls the overflow of the water and controlling the floodplain.

the first plants to make the transition

explanation:

answeramicable; (friendly);