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प्रश्न
Classify the following as natural or man-made.
water hyacinth.
विकल्प
Natural
Man-made
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उत्तर
water hyacinth - Natural
संबंधित प्रश्न
You being an environmentalist are interested in contributing towards the conservation of natural resources. List four activities that you can do on your own.
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?
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.
What’s the solution?
We have to remove insects from the grain without using insecticides.
What substances in the soil are useful for the growth of plants?
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.
sunlight
Classify the following as natural or man-made.
book.
Classify the following as natural or man-made.
chair
Classify the following as natural or man-made.
table.
Classify the following as natural or man-made.
brick
It is a biodegradable waste.
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
