Hydrogeology- intro and the importance of water

Question 1

Examples of hydrogeological issues

Answer 1

Dam projects, agriculture, nuclear waste

Question 2

The most common chemical combination o the surface of the earth

Answer 2

Water

Question 3

0.4% of water on earth

Answer 3

Found in lakes, rivers etc.

Question 4

30.9% of water of earth

Answer 4

Found as groundwater

Question 5

68.7% of water on earth

Answer 5

Found as snow and ice

Question 7

97.5% of water on earth

Answer 7

Saline water

Question 8

Modern ground water <50 years old

Answer 8

If extracted and pooled evenly across the global land surface would be ~3m deep body of water

Question 9

If rate of water usage > rate of recharge

Answer 9

Water stress

Question 10

Aquifer recharge

Answer 10

Often slower than production rates of aquifers- leads to water stress

Question 11

Where is water stress highest- dry areas with high populations

Answer 11

Middle East

Question 12

What % of world’s population uses groundwater as part of their daily needs?

Answer 12

50%

Question 13

Domestic water consumption is developed countries compared to developing countries

Answer 13

Six times greater