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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
"Burning fossil fuels is a cause of global warming." Justify this statement.
What makes the earth’s atmosphere a heterogeneous mixture?
The compound obtained on reaction of iron with steam is/are:
Which one of the places you visited shows greater biodiversity?
Micro-organisms form a part of the environment.
What are the different purposes for which fuels such as petrol, diesel, kerosene, natural gas, coal, and wood are used?
Classify the following as natural or man-made.
horse.
Classify the following as natural or man-made.
water
Classify the following as natural or man-made.
cottonwool
Classify the following as natural or man-made.
trees
Classify the following as natural or man-made.
chair
It is a biodegradable waste.
_______ is the process of converting waste materials into new materials.
These are abiotic factors.
- Sunlight
- Bacteria
- Air
- Plants
What are the by-products of fertiliser industries? How do they affect the environment?
