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Flora, Fauna & Water Test 72
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Flora, Fauna & Water Test 72
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  • Question 1/10
    1 / -0
    The different patterns on the skin of animals are :
    Solutions
    The different patterns on the skin of animals resembles from their surroundings. these patterns help animals to hide themselves from the predators. 
  • Question 2/10
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    Read the following description of an animal and identify it :
    “It looks like a bear but it is not. It spends almost 17 hours a day sleeping while hanging upside down on a tree branch. It eats the leaves of the same tree on which it lives. It lives for about 40 years.”
    Solutions
    Sloths are mammals classified in the families Megalonychidae (two-toed sloths) and Bradypodidae (three-toed sloths), including six extinct species. They are named after the capital sin of sloth because they seem slow and lazy at first glance; however, their usual idleness is due to metabolic adaptations for conserving energy. They look like bear and spend almost 17 hours a day sleeping while hanging upside down on a tree branch. They live about 40 years.
  • Question 3/10
    1 / -0
    Directions: Answer the following questions by selecting the correct/most appropriate options.
    An egret sits on a buffalo, because
    Solutions

    Egret sits on buffalo and eat the insects which are sticking to the buffalo’s skin. They both are benefitted to each other. Egret get food and buffalo get rid of germs and insects. This relationship is known as symbiotic relationship.

  • Question 4/10
    1 / -0
    Directions: Answer the following questions by selecting the correct/most appropriate options.
    Which one of the following insects does not live together in a colony like honeybees?
    Solutions
    A social spider is a spider species whose individuals form relatively long-lasting aggregations. Whereas most spiders are solitary and even aggressive toward other members of their own species. So, Spider does not live together in a colony.
  • Question 5/10
    1 / -0
    Directions: Answer the following questions by selecting the correct/most appropriate options.
    Which one of the following is not a function of roots for the plant?
    Solutions
    The first root that comes from a plant is called the radicle. A root's four major functions are 1. absorption of water and inorganic nutrients, 2. anchoring of the plant body to the ground, and supporting it, 3. storage of food and nutrients, 4. vegetative reproduction and competition with other plants.
  • Question 6/10
    1 / -0
    Predators are usually:
    Solutions
    The predators are those which usually hunt other animals. They are carnivores, and some are scavengers. Predators feed upon the prey. Preys are usually herbivores and omnivores. Prey- predator interaction is a very important factor for the maintenance of the ecosystem.
  • Question 7/10
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    Which of the following is not the MIKE site in India?
    Solutions
    MIKE refers to Monitoring of illegal killing of Elephants and this was started by South Asia in the year 2003. The main objective of MIKE is to measure levels and trends in illegal hunting. The MIKE sites in India are chirang Ripu, Mayurbhanj, DhangPatki, Mysore, Eastern Dooars, Nilgiri, Deomali, Shivalik, Garo hills and Wayanad.
  • Question 8/10
    1 / -0
    Which of the following statements are true about causes for flood?
    I. It can be caused by bank overspill from a river having a high discharge
    II. It can be caused by storm surges along the coast
    III. It can be caused by a low river discharge and low water levels at the coast
    IV. It can be caused by bank overspill in a tributary due to the back-water curve caused by low water level in the main river
    Solutions
    Floods can be caused by:-
    ● bank overspill from a river having a high discharge
    ● storm surges along the coast
    ● High river discharge and high-water levels at the coast
    ● Bank overspill in a tributary due to the back-watercurve caused by high water level in the main river
  • Question 9/10
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    A high amount of sewage receiving by water bodies shows -
    Solutions
    Sewage contains degradable material in the form of organic matter. When sewage enters water bodies, the number of decomposers (bacteris and fungi) to degrade the components of sewage also increases. This results in high bio-chemical oygen demand for decomposition by decomposers. This causes decrease in the dissolved oxygen in water bodies and has negative effects on aquatic animals.
  • Question 10/10
    1 / -0
    Which of the following is the anthropogenic source of water pollution?
    Solutions

     Anthropogenic source of pollution is those that are caused by agents released by humans and not by natural sources. Such kind of pollution depends on the demographic features of the community. More the population more will be the human activities releasing pollutants in the air, water and soil. These activities are usually linked with energy, food, and things that improve the quality of life. For examples-industries, nuclear reactors, gases from vehicle exhausts.

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