What role do phytoplankton play in the ocean?
Unit 8: Human Impact on the Hydrosphere

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Science
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Phytoplankton produce about 50% of the oxygen we breathe through photosynthesis.
2.
FLASHCARD QUESTION
Front
What is runoff?
Back
Runoff is water that flows over the ground surface after rain, melting snow, or ice.
3.
FLASHCARD QUESTION
Front
How can we protect groundwater quality?
Back
Proper disposal of hazardous waste helps protect groundwater quality.
4.
FLASHCARD QUESTION
Front
What is water pollution?
Back
Water pollution is the contamination of water bodies, often caused by human activities, leading to harmful effects on ecosystems and human health.
5.
FLASHCARD QUESTION
Front
What are the main sources of runoff?
Back
Runoff primarily comes from rain, melting snow, or ice.
6.
FLASHCARD QUESTION
Front
What is the hydrosphere?
Back
The hydrosphere includes all the water on Earth, including oceans, rivers, lakes, and groundwater.
7.
FLASHCARD QUESTION
Front
How does human activity impact the hydrosphere?
Back
Human activities such as pollution, deforestation, and urbanization can lead to water quality degradation and habitat loss.
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