Answer:
Demography
Explanation:
Because of population the land is getting low
I thinks it’s the UN because they oversee everything but I’m not 100% sure!
Answer:
:)
Explanation:
Working slowly over many years, groundwater travels along small cracks. The water dissolves and carries away the solid rock. This gradually enlarges the cracks.
It is hydropower the first option
Found at the lowest point of a large drainage area, these seasonal, marsh-like ponds collect and store water from rain and runoff. Unlike vernal pools, playas generally fill when temperatures are unsuitable for plant growth, and often the water is salty, alkali or both.
source- google