True or False: pumping of a large deep well can reverse groundwater flow by changing the hydraulic gradient.

The map above shows the countries of the middle east. which number on the map shows the location of iraq? a. 1 b. 2 c. 3 d. 4

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Match the following items. 1 1 (4,4) 2. (-4,-2) 3. (3.-6) 4. (-4, 6) 5. (1,5)