Advertisements
Advertisements
प्रश्न
Classify the following as natural or man-made.
horse.
विकल्प
Natural
Man-made
Advertisements
उत्तर
horse - Natural
संबंधित प्रश्न
What is meant by 'environment'?
Write the percentage of solar energy captured by the autotrophs.
The compound obtained on reaction of iron with steam is/are :
In the course of your observations, did you notice any signs of the presence of living things, though the living things themselves were not seen? For example, did you notice any partly eaten fruits or shells, fallen feathers, animal tracks, dung, droppings, nests, cocoons, eggs, honeycombs, etc.?
Could you observe any microorganisms?
What’s the solution?
We have to remove insects from the grain without using insecticides.
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.
stone.
Classify the following as natural or man-made.
water hyacinth.
Classify the following as natural or man-made.
water
Classify the following as natural or man-made.
trees
Classify the following as natural or man-made.
chair
Producers are ________.
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?
