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प्रश्न
Classify the following as natural or man-made.
dolphin
विकल्प
Natural
Man-made
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उत्तर
dolphin - Natural
संबंधित प्रश्न
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?
What is meant by 'environment'?
The use of one of the following will pollute the environment. This one is :
(a) paper carry bags
(b) cotton cloth carry bags
(c) nylon cloth carry bags
(d) jute carry bags
Write the percentage of solar energy captured by the autotrophs.
"Burning fossil fuels is a cause of global warming." Justify this statement.
What’s the solution?
We have to remove insects from the grain without using insecticides.
Classify the following as natural or man-made.
Soil.
Classify the following as natural or man-made.
horse.
Classify the following as natural or man-made.
stone.
Classify the following as natural or man-made.
sunlight
Classify the following as natural or man-made.
trees
_______ is the process of converting waste materials into new materials.
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!.
These are abiotic factors.
- Sunlight
- Bacteria
- Air
- Plants
Excessive exposure of humans to UV-rays results in
- damage to immune system
- damage to lungs
- skin cancer
- peptic ulcers
What are the by-products of fertiliser industries? How do they affect the environment?
