Air Around Us_12
Authored by Aishwaria Murthy
Chemistry
6th Grade
Used 3+ times
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23 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What percentage of the atmosphere does oxygen form?
21%
78%
32%
15%
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the term used for the circulation and recycling of oxygen within the biosphere?
Oxygen cycle
Nitrogen cycle
Water cycle
Carbon cycle
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which process releases oxygen in the biosphere?
Corrosion
Photosynthesis
Combustion
Respiration
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the term for microbes that use oxygen for respiration?
Obligate anaerobes
Anaerobes
Aerobes
Facultative anaerobes
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the chemical formula for water?
H2O2
CO2
O3
H2O
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is not a form in which oxygen is found?
Ozone (O3)
Carbon dioxide (CO2)
Nitrogen (N2)
Molecular oxygen (O2)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the term for microbes which do not need oxygen?
Obligate anaerobes
Facultative anaerobes
Anaerobes
Aerobes
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