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Presence of plants arranged into well de...

Presence of plants arranged into well defined vertical layers depending on their height can be seen best in

A

Tropical Rain Forest

B

Grassland

C

Temperate Forest

D

Tropical Savannah

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Weightlessness in space: Space travellers as well as objects in the spacecraft appear to be floating. Why does this happen? Though the spacecradft is at a height from the surface of the earth the value of g there is not zero. In the space station the value of g is only 11% less than its value on the surface of the earth. Thus, the height of a spacecraft is not the reason for their weightlessness. Their weightlessness is caused by their being in the state of free fall. Though the spacecraft is not falling on the earth because of its velocity along the orbit, the only force acting on it is the gravitational force of the earth and therefore it is in a free fall state. As the velocity of free fall does not depend on the properties of an object, the velocity of free falls is the same for the spacecraft, the travellers and the objects in the craft. Thus, if a traveller releases an object from her hand, it will remain stationary with respect to her and will appear to be weightless. Is the value of g zero in the space station?

Weightlessness in space: Space travellers as well as objects in the spacecraft appear to be floating. Why does this happen? Though the spacecradft is at a height from the surface of the earth the value of g there is not zero. In the space station the value of g is only 11% less than its value on the surface of the earth. Thus, the height of a spacecraft is not the reason for their weightlessness. Their weightlessness is caused by their being in the state of free fall. Though the spacecraft is not falling on the earth because of its velocity along the orbit, the only force acting on it is the gravitational force of the earth and therefore it is in a free fall state. As the velocity of free fall does not depend on the properties of an object, the velocity of free falls is the same for the spacecraft, the travellers and the objects in the craft. Thus, if a traveller releases an object from her hand, it will remain stationary with respect to her and will appear to be weightless. Why is weightlessness caused in a spacecraft?

Weightlessness in space: Space travellers as well as objects in the spacecraft appear to be floating. Why does this happen? Though the spacecradft is at a height from the surface of the earth the value of g there is not zero. In the space station the value of g is only 11% less than its value on the surface of the earth. Thus, the height of a spacecraft is not the reason for their weightlessness. Their weightlessness is caused by their being in the state of free fall. Though the spacecraft is not falling on the earth because of its velocity along the orbit, the only force acting on it is the gravitational force of the earth and therefore it is in a free fall state. As the velocity of free fall does not depend on the properties of an object, the velocity of free falls is the same for the spacecraft, the travellers and the objects in the craft. Thus, if a traveller releases an object from her hand, it will remain stationary with respect to her and will appear to be weightless. Why doesn't the spacecraft fall towards the Earth?

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SARAS PUBLICATION-ECOLOGY AND ENVIRONMANT-EXAMPLE
  1. Analogous structures are a result of :

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  2. Asthma may be attributed to

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  3. The living organisms present in an ecosystem forms

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  4. Stirred - tank bioreactors have been designed for:

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  5. How many hot spots of biodiversity in the world have been identified t...

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  6. The primary producers of the deep - sea hydrothermal vent ecosystem ar...

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  7. Which of the following is correctly matched?

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  8. The chronological order of human evolution from early to the recent is...

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  9. A mong the following edible fishes , which one is a marine fish having...

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  10. which of the following National Parks is home to the famous musk deer ...

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  11. Study the four statements (A-D) given below and select the two correct...

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  12. Which one of the following is an example of ex-situ conservation?

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  13. The water potential of pure water is

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  14. The process of separation and purification of expressed protein before...

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  15. Which of the following in sewage treatment removes suspended solids?

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  16. Which among these is correct combination of aquatic mammals?

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  17. Which ecosystem has the maximum biomass?

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  18. Presence of plants arranged into well defined vertical layers dependin...

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  19. Select the mismatch:

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  20. The region of Biosphere Reserve which is legally protected and where n...

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