How living things change the environment?
Presentation
•
Science
•
4th Grade
•
Easy
Nelson Rivera Berrios
Used 35+ times
FREE Resource
5 Slides • 0 Questions
1
How living things change the environment?
Erosion occurs for several reasons, but a main reason is human activity. When humans disturb the earth with construction, gardening, logging and mining activities the result is a weakening of the topsoil of the earth, which leads to excessive wearing away and erosion.
2
Deforestation
Deforestation
Deforestation, which is logging or burning forests, is a way in which humans cause erosion. Removal of the vegetation covering the ground causes the soil, which is unprotected against wind and water, to erode. The loss of topsoil essentially destroys the ability for the land to regenerate.
3
Watering
Watering gardens and lawns also causes erosion.
When using a garden hose or an irrigation system, the water hits the ground with enough force to cause the soil to erode.
Overwatering will also cause soil erosion.
4
Agriculture
Agriculture is the main way humans cause soil erosion.
When vegetation is planted in the ground, the topsoil is shifted, which causes erosion.
The loose topsoil is then transported by wind to nearby streams and waterways.
They become sediment or runoff, lowering the overall quality of the water.
5
Land Clearing
Land clearing impacts the environment significantly, whether it is a small scale or large scale clearance.
When land clearing is extensive the effects can be irreversible, but when the clearing is minimal the effects can be reversed.
How living things change the environment?
Erosion occurs for several reasons, but a main reason is human activity. When humans disturb the earth with construction, gardening, logging and mining activities the result is a weakening of the topsoil of the earth, which leads to excessive wearing away and erosion.
Show answer
Auto Play
Slide 1 / 5
SLIDE
