EASY
Earn 100

Oxygen is returned to the atmosphere mainly by

50% studentsanswered this correctly

Important Questions on Natural Resources

MEDIUM
Which process is unidirectional in nitrogen cycle?
MEDIUM
When we breathe in air, nitrogen also goes inside along with oxygen. What is the fate of this nitrogen?
MEDIUM
The two forms of oxygen found in the atmosphere are
EASY
Oxygen is returned to the atmosphere in only one major process. It is :
MEDIUM
Oxygen is returned to the atmosphere mainly by
EASY
Name the two forms of oxygen found in the atmosphere.
MEDIUM
If more trees are grown in the industrial towns
EASY
Which step is not involved in the carbon cycle?
MEDIUM

Fill in the blank with the correct option provided in the bracket.

Plants and animals remove oxygen from the atmosphere during _____. (photosynthesis/transpiration/respiration)

MEDIUM
What is the usable form of carbon in the carbon cycle?
MEDIUM
Choose the correct sequence.
MEDIUM
Which step is not involved in the carbon cycle?
EASY
Plants absorb carbon dioxide from the atmosphere through the process of _____.
MEDIUM
Make a schematic diagram of the carbon cycle in nature. 
EASY
Choose the correct sequences.
MEDIUM
What are the four major biogeochemical cycles operating in the biosphere?
MEDIUM
With the help of a diagram, explain briefly the carbon cycle in the biosphere. Name the various ways through which carbon dioxide is returned to and removed and from the atmosphere.
EASY
The two forms of oxygen found in the atmosphere are
EASY
Oxygen is returned to the atmosphere mainly by :
EASY
Which one of the following is carbon containing molecule?