Nitrogen Cycle Practice Flashcard [7th Grade]
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the role of Rhizobium bacteria in the nitrogen cycle?
Back
Rhizobium bacteria convert nitrogen gas from the atmosphere into ammonia, which plants can use.
2.
FLASHCARD QUESTION
Front
True or False: Dead plants and animals excreta do not contain nitrogenous waste.
Back
False. Dead plants and animals, as well as their excreta, contain nitrogenous waste.
3.
FLASHCARD QUESTION
Front
What do nitrogen-fixing bacteria help plants to do?
Back
They help plants use ammonia and nitrate, which are usable forms of nitrogen.
4.
FLASHCARD QUESTION
Front
What natural phenomenon can transform atmospheric nitrogen into a usable form?
Back
Lightning can transform nitrogen in the atmosphere into a usable form.
5.
FLASHCARD QUESTION
Front
What is the function of denitrifying bacteria in the nitrogen cycle?
Back
Denitrifying bacteria change nitrate back into nitrogen gas, completing the nitrogen cycle.
6.
FLASHCARD QUESTION
Front
Define nitrogen fixation.
Back
Nitrogen fixation is the process of converting nitrogen gas from the atmosphere into ammonia or related compounds in soil.
7.
FLASHCARD QUESTION
Front
What is the significance of nitrates for plants?
Back
Nitrates are essential nutrients that plants absorb from the soil to grow and develop.
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