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:

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the thirteen colonies are:

connecticut, delaware, georgia, maryland, massachusetts, new jersey, new york, new hampshire, north carolina, pennsylvania, rhode island, south carolina, virginia