Answer:
A. True, A. True A. True
Explanation:
Hydrograph shows the rate of flow of water versus time from a river, a canal that is carrying the flow. A hydrograph can be for Surface runoff, Storms and floods.
An aquifer is a body of rock that has permissible water retention capacity. I t may be defined as confined or unconfined if it's confined it may have a layer above it.
The concept of greenstone belt has originated from the ancient oceanic spreading centers, and Icelandic arc terrains formed by basaltic rocks.
