Biology
Grade-8
Easy
Question
Hint:
1-B
2-E
3-C
4-A
- Rocks and mountains are reservoirs for sulfur, phosphorous and they are released in the soil by weathering.
- Nitrogen fixing bacteria fix atmospheric nitrogen in the roots of leguminous plants.
- Humans contribute majorly to carbon cycle by burning fossil fuel.
- The vast variety of crops require nitrogen fertilizer to acquire their yield potential.
Related Questions to study
Biology
From the given picture we understand that __________ convert the dead and decay to ammonia.
From the given picture we understand that __________ convert the dead and decay to ammonia.
BiologyGrade-8
Biology
The element present in atmosphere but still in unavailable form to plants is _________.
The element present in atmosphere but still in unavailable form to plants is _________.
BiologyGrade-8
Biology
Even after the death of the organism the carbon is still reserved as _________.
Even after the death of the organism the carbon is still reserved as _________.
BiologyGrade-8
Biology
Pick the odd one out.
Pick the odd one out.
BiologyGrade-8
Biology
Match the following
. 
Match the following
.
BiologyGrade-8
Biology
When fossil fuels are burnt __________ is liberated into the atmosphere.
When fossil fuels are burnt __________ is liberated into the atmosphere.
BiologyGrade-8
Biology
The element that is present in atmosphere and is required for respiration process in all living organisms is ________.
The element that is present in atmosphere and is required for respiration process in all living organisms is ________.
BiologyGrade-8
Biology
The cycle that does not involve atmosphere for its exchange is __________.
The cycle that does not involve atmosphere for its exchange is __________.
BiologyGrade-8
Biology
The process of converting Nitrite to Nitrate by Nitrobacter is called __________.
The process of converting Nitrite to Nitrate by Nitrobacter is called __________.
BiologyGrade-8
Biology
________ element is present in amino acids like methionine and cysteine.
________ element is present in amino acids like methionine and cysteine.
BiologyGrade-8
Biology
_________ percentage of oxygen is present in the atmosphere.
_________ percentage of oxygen is present in the atmosphere.
BiologyGrade-8
Biology
The ammonia is converted to ____________ by nitrosomonas bacteria.
The ammonia is converted to ____________ by nitrosomonas bacteria.
BiologyGrade-8
Biology
The plants take up carbon dioxide for __________ process from atmosphere.
The plants take up carbon dioxide for __________ process from atmosphere.
BiologyGrade-8
Biology
In carbon cycle death and decay of organisms forms __________ in soil.
In carbon cycle death and decay of organisms forms __________ in soil.
BiologyGrade-8
Biology
Crossword puzzle
Crossword puzzle
BiologyGrade-9
