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WorksheetsHuman Impact
Total questions: 17
Worksheet time: 26mins
What is global warming
the normal temperature fluctuations of Earth's climate cycle
the melting of the polar ice caps
the trend of increasing temperatures on Earth
the changes in Earth's biosphere that affect the atmosphere
1. What is one of the greatest threats to biodiversity on Earth?
habitat destruction
loss of drinking water
decrease in food supply
pollution
When introduced to a new habitat, non-native plants often threaten the native plants. Why is this?
Non-native plants eat the native plants.
Non-native plants are eaten by more native animals.
Non-native plants cause native animals to relocate.
Non-native plants compete with the native plants for resources.
Which action could humans take to slow the rate of global warming?
Cut down trees for more efficient land use.
Increase the consumption of petroleum
products.
Use alternate sources of energy such as wind.
Reduce the use of fuel-efficient automobiles.
Which of the following would be the most likely consequence of the wetland’s destruction?
The primary cause of invasive species introduction is
too much food
human actions
weather events
asteroids
