Lesson: Human Impact on Earth's Systems: Farming and FishingScience
In this lesson, we will learn how to identify the impact that certain human activities, such as farming and fishing, can have in damaging Earth’s systems.
Sample Question Videos
Worksheet: 6 Questions • 1 Video
Deforestation happens when large areas of trees are cleared. This can be caused by natural or man-made events.
Which of the following is a natural event that causes deforestation?
Did you know that around 24 billion metric tons of fertile soil is lost each year due to farming?
When farming activities are carried out, fertile topsoil is exposed and is often blown away by wind or washed away by rain.
Which word is used to describe this wearing away of the soil by wind and water?
Forests store enormous quantities of carbon dioxide. When forests are destroyed to clear land for farming, a large amount of carbon dioxide is left untreated in the atmosphere.
What effect does deforestation have on climate change?