Match the water cycle element in column 1 with the characteristics in column 2.

Oceans = > 97 percent of Earth's water.

Glaciers = > 70% of Earth's freshwater

River = > Powered by gravity

Groundwater = > 100 times more water than all rivers and lakes

97% of the water on Earth is not drinkable as it is salt-water in oceans.

Of the 3% that is freshwater, Glaciers make up about 70% which means that we don't have access to a significant amount of freshwater either.

Of the available freshwater to us, groundwater comprises 98% which enables it to be 100 times more than all rivers and lakes.

Rivers are powered by gravity in that they flow from areas of higher elevation to areas of lower elevation as gravity pulls it downwards.

b.

developed countries have tended to improve the environment, while developing countries have tended to damage it.

question

which are human systems?

the amazon rain forest

the appalachian trail

the george washington bridge

the himalayas

the hoover dam

the north american free trade agreement