Watershed

Front

What is a watershed?

Back

A watershed is an area of land where all the water that falls on it drains into a common outlet, such as a river, lake, or ocean.

Front

What is the water table?

Back

The water table is the top of the saturation zone, where the soil and rock are fully saturated with water.

Front

What is groundwater?

Back

Groundwater is all the water located below the surface of the land.

Front

What is point source water pollution?

Back

Point source water pollution is contamination that comes from a single, identifiable source, such as a pipe or a drain.

Front

What is nonpoint source water pollution?

Back

Nonpoint source water pollution comes from multiple sources and is often caused by runoff from land, such as agricultural fields or urban areas.

Front

What human activity is least likely to affect watersheds?

Back

Reading a book is least likely to affect watersheds compared to activities like cutting down trees or fertilizing lawns.

Front

What can excessive removal of water from an aquifer cause?

Back

Excessive removal of water can weaken the ground and lead to problems such as land subsidence.

Front

What is runoff?

Back

Runoff is the flow of water, from rain or melting snow, that moves across the ground and into bodies of water.

Front

What is an aquifer?

Back

An aquifer is a geological formation that can store and transmit water, often tapped for drinking water.

Front

What is the difference between surface water and groundwater?

Back

Surface water is found in lakes, rivers, and streams, while groundwater is found beneath the earth's surface.