L7.1.4: The Nitrogen Cycle
Interactive Video
•
Science
•
7th Grade
•
Practice Problem
•
Medium
Dorvera Owens
Used 2+ times
FREE Resource
6 questions
Show all answers
1.
OPEN ENDED QUESTION
3 mins • 1 pt
What do you already know about the nitrogen cycle?
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2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is atmospheric nitrogen (N2) not directly usable by most living organisms?
It is too abundant in the atmosphere.
It has a strong triple bond that is difficult to break.
It is a noble gas and does not react.
It is only found in the upper atmosphere.
3.
MULTIPLE CHOICE QUESTION
30 sec • Ungraded
Are you enjoying the video lesson?
Yes
No
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the process by which nitrogen-fixing bacteria convert atmospheric nitrogen gas (N2) into ammonia (NH3) or ammonium (NH4+)?
Nitrification
Denitrification
Nitrogen Fixation
Ammonification
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which process involves nitrifying bacteria converting ammonia into nitrites and then into nitrates?
Assimilation
Denitrification
Nitrogen Fixation
Nitrification
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to nitrogen when living organisms die and decompose?
It is immediately released back into the atmosphere as N2 gas.
It is converted into nitrates by nitrifying bacteria.
It is returned to the soil as ammonia through ammonification.
It is assimilated directly by other living plants.
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