Question

1 How can we recharge ground water. 2 How were tanks built.​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

Ans 1. a. Groundwater recharge or deep drainage or deep percolation is a hydrologic process, where water moves downward from surface water to groundwater.

b. Groundwater is recharged naturally by rain and snow melt and to a smaller extent by surface water (rivers and lakes).

Ans 2. The first official photograph taken of a tank going into action, at the Battle of Flers-Courcelette on 15 September 1916. ... This was the first to use a fully rotating turret that contained the tank's main armament - the basis of tank design ever since. Over 3,000 of these machines were made by late 1918.