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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
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
What is meant by 'environment'?
Write the percentage of solar energy captured by the autotrophs.
What makes the earth’s atmosphere a heterogeneous mixture?
Could you observe any microorganisms?
Give reason.
It is important to conserve the living components of the environment.
Classify the following as natural or man-made.
Soil.
Classify the following as natural or man-made.
sunlight
Classify the following as natural or man-made.
book.
Classify the following as natural or man-made.
pen
Classify the following as natural or man-made.
brick
Take a square paper. Fold its diagonals. Draw three lines in three triangles as shown in the picture.
Cut from the edge of the diagonal to the center as shown in the picture.
If you fold this triangle and paste it behind the third triangle you get a pyramidal shape.
In one of the triangles, draw images of each of the organisms in the different levels.
In another triangle write the names of the organisms. In the last triangle, write the energy level of the organism. Have a look at the following example. You must come up with different organisms!.
When is the world environment day celebrated?
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.
Explain some harmful effects of agricultural practices on the environment.
The abiotic factors are the non-living parts such as sunlight, air, water, and minerals in the soil.
