What is the biosphere?
A Fresh Future

Flashcard
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Science
•
5th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The biosphere is the global sum of all ecosystems, where life exists, including land, water, and the atmosphere.
2.
FLASHCARD QUESTION
Front
What does it mean to pollute?
Back
To pollute means to introduce harmful substances or contaminants into the environment, making it dirty or unsafe.
3.
FLASHCARD QUESTION
Front
What is freshwater?
Back
Freshwater is water that has low concentrations of dissolved salts, found in rivers, lakes, and streams.
4.
FLASHCARD QUESTION
Front
What are dams?
Back
Dams are structures built to hold back water, creating reservoirs and controlling water flow.
5.
FLASHCARD QUESTION
Front
How can pollution harm animals?
Back
Pollution can harm animals by contaminating their habitats, leading to health problems, and reducing food sources.
6.
FLASHCARD QUESTION
Front
What is overharvesting?
Back
Overharvesting is the excessive removal of natural resources, such as fish or plants, faster than they can replenish.
7.
FLASHCARD QUESTION
Front
What is the impact of dams on freshwater?
Back
Dams can reduce the flow of freshwater, affecting ecosystems and the availability of water downstream.
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