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WorksheetsOxygen Cycle Quiz
Total questions: 10
Worksheet time: 6mins
What is the process by which plants release oxygen into the atmosphere?
Photosynthesis
Fermentation
Transpiration
Respiration
Name the process by which animals take in oxygen and release carbon dioxide.
Digestion
Excretion
Respiration
Photosynthesis
What is the role of decomposers in the oxygen cycle?
Consume carbon dioxide and nutrients from the environment
Release oxygen and water vapor into the environment
Release carbon dioxide and nutrients back into the environment
Absorb oxygen from the environment
Explain the process of photosynthesis and its role in the oxygen cycle.
Photosynthesis is the process by which plants absorb water and release carbon dioxide.
Photosynthesis is the process by which plants produce glucose by breaking down oxygen.
Photosynthesis is the process by which animals convert oxygen into carbon dioxide.
Photosynthesis is the process by which green plants use sunlight to synthesize foods with the help of chlorophyll. During this process, carbon dioxide is converted into oxygen, which is released into the atmosphere.
How does deforestation affect the oxygen cycle?
Increases oxygen production
Has no impact on oxygen production
Causes oxygen to be released into the atmosphere
Reduces oxygen production
What are the primary sources of oxygen in the atmosphere?
Burning of fossil fuels
Photosynthesis and photodissociation of water vapor
Volcanic eruptions
Chemical reactions in the Earth's core
Describe the role of oceans in the oxygen cycle.
Oceans have no role in the oxygen cycle
Oceans produce oxygen through volcanic activity
They produce a significant amount of the Earth's oxygen through photosynthesis by marine plants and phytoplankton.
They absorb oxygen from the atmosphere and release it into the water
Explain the process of respiration and its role in the oxygen cycle.
Respiration is the process of converting carbon dioxide into oxygen. In the oxygen cycle, respiration has no impact on the availability of oxygen for other organisms.
Respiration is the process of taking in carbon dioxide and releasing oxygen. In the oxygen cycle, respiration plays a crucial role in removing oxygen from the atmosphere.
Respiration is the process of releasing oxygen and taking in carbon dioxide. In the oxygen cycle, respiration has no role in providing oxygen for other organisms.
Respiration is the process by which organisms take in oxygen and release carbon dioxide. In the oxygen cycle, respiration plays a crucial role in providing oxygen for other organisms to use.
What are the consequences of air pollution on the oxygen cycle?
No impact on the oxygen cycle
Enhanced oxygen absorption by the atmosphere
Decreased oxygen production by plants and phytoplankton
Increased oxygen production by plants and phytoplankton
How can individuals contribute to maintaining the balance of the oxygen cycle?
Planting trees and supporting conservation efforts
Dumping waste into water bodies
Using more fossil fuels
Cutting down all the trees
