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EVS Flora, Fauna & Water Test 64
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EVS Flora, Fauna & Water Test 64
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  • Question 1/10
    1 / -0
    horse blood is used to develop.........
    Solutions
    Horse blood is used to develop antitoxin for snake bites and various other diseases.
  • Question 2/10
    1 / -0
    Which of the following plant is used to make Biodiesel?
    Solutions
    Jatropha plant is used to make Biodiesel.
  • Question 3/10
    1 / -0
    Which of the following are the shrubs?
    Solutions

    Some plants are smaller than trees and are called shrubs like Lemon & Rose Plant.

  • Question 4/10
    1 / -0
    La tiger is another name of which animal?
    Solutions
    Option(D) Dolphins found in the Ganges River in India are also called La Tiger.
  • Question 5/10
    1 / -0
    Earthworms are considered friends of the farmers. Select from the following the correct reasons for the same:

    (A) Earthworms eat the dead leaves and plants and their droppings fertilize the soil.

    (B) Earthworms eat the weeds and save the main crop.

    (C) Earthworms soften the soil by digging underneath.

    (D) The tunnels made by the earthworms provide easy passage to air and water into the soil.

    Solutions

    Earthworms are considered to be farmer’s friends because of their various benefits to farmers.


    Earthworm are best decomposers and form a byproduct after decomposing the plants and animal called as vermicompost and thus improve soil health. They make holes or passages in the soil thus helping in the soaking of water and nutrients near the plants roots and allowing for the aeration to plants.

  • Question 6/10
    1 / -0
    Which type of plants take two years to complete their biological life cycle?
    Solutions
    Biennial Plants take two years to complete their biological lifecyclE. In the first year of its life cycle it grows roots, leaves and stems and in second year it fetches flowers. Carrot, Radish, Onion, Fennel are some examples of Biennial Plants.
  • Question 7/10
    1 / -0
    The economic man in biotic environment is__
    Solutions
    The economic man derives and utilizes resources from the physical and biotic environment with his skills and technologies. The economic function makes the man an environment/geomorphic process as he transports matter and energy from one component of the ecosystem to the other.
  • Question 8/10
    1 / -0
    At the poles of the earth, water is present in the form of –
    Solutions
    The solid form, snow and ice, is present as ice caps at the poles of the earth, snow-covered
    mountains and glaciers.
  • Question 9/10
    1 / -0
    One of the ways of controlling water pollution can be by:
    Solutions
    Water pollution can be controlled by preventing industrial waste falling into the water body. One of the main sources of water pollution is the industrial waste producing pollutants extremely harmful for the environment. Long term exposure to polluted water causes chronic health problems, making the issue of industrial pollution into a severe one.
  • Question 10/10
    1 / -0
    A lemon sinks in normal water but floats in salty water because the density of
    Solutions
    When salt is dissolved in water, as it is in ocean water, that dissolved salt adds to the mass of the water and makes the water denser than it would be without salt. Because objects float better on a dense surface, they float better on salt water than fresh water.
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