Finals water

Describe the social and environmental impacts of a dam.

Environmental impacts are it can affect ecosystems. It can change the flow of the river, it can cause flooding in the reservoir. Social impact is dams allow for a renewable energy source, the power of the water can be turned into electricity

What is ground water? Why is polluted groundwater difficult to clean up?

Groundwater is found underground, for example: aquifers. It is difficult to clean up because it is deep in the rocks and hard to access, and in order to naturally filter it can take hundreds to thousands of years,

What is the largest watershed in the United States?

Mississippi

What is the difference between point and non-point source pollution? If the pollutant is traced back to a gas station that has a leaking tank is that point or non-point source?

Point source pollution can be traced back to its source and non-point pollution comes from many different sources and can not be traced back. So if the pollutant can be traced back to a gas station that is point source pollution.

Give some examples of non-point source pollution. .

Runoff from farm lands, oil from cars and small boats, cleaning products used in a household

What is surface water? What percent of the earth is surface water?

Surface water is freshwater found on the earth's surface, rivers, lakes, ponds, streams. This makes up less than 1% of all water on earth

If the country upsteam builds a dam how will that affect the countries downstream from them?

This will cause a conflict because downstream will receive less water to do the change in the river flow.

What is an inexpensive solution to provide everyone with more fresh water to use?

Water conservation