Technology that Limits the Impact of Forces on the Earth

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from the Earth's surface by natural processes such as wind or water flow.

Front

What is a dam?

Back

A dam is a structure built to block the flow of water, creating a reservoir and helping to prevent flooding.

Front

What is a levee?

Back

A levee is an embankment built along a river to prevent flooding by directing water flow.

Front

What is a seismograph?

Back

A seismograph is an instrument that measures and records the strength of vibrations caused by earthquakes.

Front

How do dams help in flood prevention?

Back

Dams store excess water during heavy rains, reducing the risk of flooding downstream.

Front

What is contour plowing?

Back

Contour plowing is a farming practice where plowing is done along the contours of the land to reduce soil erosion.

Front

What is the purpose of planting vegetation in erosion control?

Back

Planting vegetation helps to anchor the soil with roots, reducing the risk of soil erosion.

Front

What is terracing?

Back

Terracing is a method of creating flat areas on sloped land to slow down water runoff and reduce soil erosion.

Front

What is the least effective method for preventing soil erosion?

Back

Putting up fences is the least effective method for preventing soil erosion compared to other techniques.

Front

Why are seismographs important for studying earthquakes?

Back

Seismographs are important because they measure the strength of vibrations, helping scientists understand earthquakes.