Biogeochemical Cycles
Flashcard
•
Science
•
9th Grade
•
Hard
+5
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What are biogeochemical cycles?
Back
Biogeochemical cycles are natural processes that recycle nutrients in various chemical forms from the environment to organisms and back to the environment.
Tags
NGSS.MS-ESS2-1
NGSS.MS-LS1-6
NGSS.MS-LS2-3
2.
FLASHCARD QUESTION
Front
Name the four main biogeochemical cycles.
Back
The four main biogeochemical cycles are the water cycle, carbon cycle, nitrogen cycle, and phosphorus cycle.
Tags
NGSS.MS-ESS2-4
NGSS.MS-LS2-3
3.
FLASHCARD QUESTION
Front
Which cycle DOESN'T cycle through the atmosphere?
Back
Phosphorus cycle.
4.
FLASHCARD QUESTION
Front
What is the primary source of carbon in the carbon cycle?
Back
Fossil fuels (oil, coal, natural gas) and atmospheric carbon dioxide.
Tags
NGSS.MS-LS1-6
NGSS.MS-LS2-3
5.
FLASHCARD QUESTION
Front
What is denitrification?
Back
Denitrification is the process by which bacteria convert nitrates (NO3-) into nitrogen gas (N2), returning nitrogen to the atmosphere.
Tags
NGSS.MS-LS2-3
6.
FLASHCARD QUESTION
Front
What is the role of phosphorus in ecosystems?
Back
Phosphorus is essential for the formation of DNA, RNA, and ATP, and it plays a key role in energy transfer and photosynthesis.
Tags
NGSS.MS-LS1-6
NGSS.MS-LS2-3
7.
FLASHCARD QUESTION
Front
How does water move through the water cycle?
Back
Water moves through the water cycle via processes such as evaporation, condensation, precipitation, and infiltration.
Tags
NGSS.MS-ESS2-4
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