Question

which of the following is constructed in rocky areas ​

Answer 1

Answer:

Tanks are built by constructing earthen walls across a valley or depression in which rain water is collected, and later is used during dry summer months. For constructing tanks, there must be impervious layer or hard rocks below such that water does not seep in

Answer 2

Answer:

Tanks..

Explanation:

Tanks are built by constructing earthen walls across a valley or depression in which rain water is collected, and later is used during dry summer months. For constructing tanks, there must be impervious layer or hard rocks below such that water does not see