EASY
Earn 100

Rhizobium (a Bacteria) which fixes atmospheric nitrogen are found in nodules growing in

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Important Questions on Natural Resources

MEDIUM
Science>Biology>Natural Resources>Biogeochemical Cycles
Which step is not involved in the carbon cycle?
MEDIUM
Science>Biology>Natural Resources>Biogeochemical Cycles
What do you understand by the fixation of nitrogen? What are the various ways through which fixation of nitrogen takes place? Draw a labelled diagram of the nitrogen cycle in the biosphere and describe it briefly.
EASY
Science>Biology>Natural Resources>Biogeochemical Cycles
One of the following processes is not a step involved in the water cycle operating in nature :
MEDIUM
Science>Biology>Natural Resources>Biogeochemical Cycles
What are the four major biogeochemical cycles operating in the biosphere?
EASY
Science>Biology>Natural Resources>Biogeochemical Cycles
Organisms play a vital role in nitrogen fixation. Write names of two such organisms.
MEDIUM
Science>Biology>Natural Resources>Biogeochemical Cycles
Why are root nodules useful for the plants?
MEDIUM
Science>Biology>Natural Resources>Biogeochemical Cycles
Which one of the following process is not a step involved in the water cycle operating in nature?
EASY
Science>Biology>Natural Resources>Biogeochemical Cycles
The nitrogen molecules present in air can be converted into nitrates and nitrites by :
EASY
Science>Biology>Natural Resources>Biogeochemical Cycles
Name the two forms of oxygen found in the atmosphere.
EASY
Science>Biology>Natural Resources>Biogeochemical Cycles
Choose the correct sequences.
MEDIUM
Science>Biology>Natural Resources>Biogeochemical Cycles
Draw a neat well-labelled diagram of the water cycle. 
EASY
Science>Biology>Natural Resources>Biogeochemical Cycles
Write short note on water cycle.
MEDIUM
Science>Biology>Natural Resources>Biogeochemical Cycles

Name X from the following nitrogen cycle in nature :

Ammonia →X →Nitrates

MEDIUM
Science>Biology>Natural Resources>Biogeochemical Cycles
With the help of a suitable diagram, describe the oxygen cycle occurring in the biosphere. Name the major process through which oxygen is returned to the atmosphere. Also, name the process through which oxygen enters from the atmosphere into the living world. What role do organisms play in the oxygen cycle?
EASY
Science>Biology>Natural Resources>Biogeochemical Cycles
Which step is not involved in the carbon cycle?
EASY
Science>Biology>Natural Resources>Biogeochemical Cycles
What are the two biologically important compounds that contain both oxygen and nitrogen?
MEDIUM
Science>Biology>Natural Resources>Biogeochemical Cycles
Oxygen is harmful for
MEDIUM
Science>Biology>Natural Resources>Biogeochemical Cycles
The process of nitrogen-fixation by bacteria does not take place in the presence of
MEDIUM
Science>Biology>Natural Resources>Biogeochemical Cycles
When we breathe in air, nitrogen also goes inside along with oxygen. What is the fate of this nitrogen?
MEDIUM
Science>Biology>Natural Resources>Biogeochemical Cycles
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.