According to the rice paddy activity, how do people use stones to build terraces? A.
to mark the edges of terraces
B.
to make walls that will hold water in
C.
to line the bottom of each layer of the terrace
D.
to create walkways between the terrace’s growing fields

It is done by creating level ramps on the escarpment or walls of stones that will retain water. For rice cultivation it is important that the land is always moist, or even flooded, so the storage terraces are advantageous for this crop. These are terraces built to retain rainwater, allowing them to seep into the soil.

Explanation:

brainliest please

mercury

explanation:

mercury is the least dense because of its size

an angle + its complement = 90 degrees