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प्रश्न
What substances in the soil are useful for the growth of plants?
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उत्तर
- Plants require water, minerals, and other substances in the soil for their growth.
- The substances formed due to the decomposition of dead and decaying plant and animal material are very useful for plants.
- These substances help in the rapid growth of plants.
संबंधित प्रश्न
Which one term in the following includes the others?
air, flora, fauna, environment, water, sunlight, soil
Fill in the following blank with suitable word :
The science that deals with the inter-relationships of living things with one another and their environment is called...........
The number of malaria patients in a village increased tremendously when large number of frogs were exported from the village. What could be the cause for it?
Write one or two word for the following statement/definition :
The physical and biological world where we live in
"Burning fossil fuels is a cause of global warming." Justify this statement.
What makes the earth’s atmosphere a heterogeneous mixture?
Could you observe any microorganisms?
What’s the solution?
We have to remove insects from the grain without using insecticides.
Give reason.
It is important to conserve the living components of the environment.
Classify the following as natural or man-made.
water hyacinth.
Classify the following as natural or man-made.
sunlight
Classify the following as natural or man-made.
water
Classify the following as natural or man-made.
cottonwool
It is a biodegradable waste.
_______ is the process of converting waste materials into new materials.
Suggest one word for the following statement/definition.
The physical and biological world where we live in
Select the mis-matched pair in the following and correct it.
What are the by-products of fertiliser industries? How do they affect the environment?
