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Management of Natural Resources Test - 17

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Management of Natural Resources Test - 17
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Which one of the following is a fossil fuel?
    Solution
    Fossil fuels are energy resources formed due to the decomposition of old lifeforms buried deep inside the layers of sediments thousands of years ago. They are mostly hydrocarbons - petroleum, natural gas, coal or their derivatives.
    Wood is an organic fuel derived from woody plants or trees.
    Hydrogen is a lightweight fuel and a cleaner alternative to fossil fuels. 
    Nuclear energy is a form of energy derived from radioactive elements.
  • Question 2
    1 / -0
    On the basis of the issues raised in this chapter, what changes would you incorporate in your life-style in a move towards a sustainable use of our resources?
    Solution
     I would make the following changes in my lifestyle to ensure sustainable use of our resources:
    I will stop cutting trees and practise plantation of trees.
    Other things that can be done are :
    I will use a bicycle more often than earlier.
    • I will start using jute/cloth bag while shopping.
    • I will collect old newspaper and give them to kabaadiwaala; for recycling.
    • The correct option is A.
  • Question 3
    1 / -0
    Which of the following functions performed by a forest helps most in controlling drought? 
    Solution
    • Forests bring rainfall in the monsoon season. Trees absorb a lot of water from the soil for nourishment. Later, when the sun shines on the trees, water is released from the leaves and absorbed back into the atmosphere. 
    • When the sun's energy removes water from the earth's surface the water collects into the clouds and when the clouds are heavy with water they release rain back to the earth. 
    • Trees are like natural air conditioners and water pumps. They cool the earth by giving shade and recycling water. By cooling the air and ground around them, the shade from trees helps cool the earth's temperature overall. 
    • Trees also help moderate the earth's rainfall, which also helps keep the temperature cooler.
    So, the correct answer is option C.
  • Question 4
    1 / -0
    'Vasudhaiv kutumbakam' means
    Solution
    The philosophy that ‘entire natural world be in harmony’  is reflected in the famous phrase in Sanskrit ‘Vasudhaiv kutumbakam’ that means “the entire earth is one family”. The phrase is mentioned in ‘Mahaupanishad’, that is probably a part of the ancient Indian text, Atharva Veda.
  • Question 5
    1 / -0
    Which of the following bacteria is found in Ganga water?
    Solution

    Coliform is a group of bacteria, found in the human intestine. Presence of coliform bacteria in water indicates contamination. These bacteria are found in human faeces. 

    So, the correct answer is option 'A'. 

  • Question 6
    1 / -0
    Which of the following products is not derived during oil refining ?
    Solution
    Crude oil is a liquid consisting of hydrocarbons found beneath the Earth's surface. Its refining yields several refined and more useful forms like petrol, diesel, kerosene, etc. All of them are hydrocarbons with different molecular weights. Hydrogen is the odd one out as it is an element and not among the end products of refining.
    So, the correct answer is option A.
  • Question 7
    1 / -0
    Identify the most appropriate option.

    Sustainable development can be achieved by:
    Solution
    Sustainable development can be achieved by judicious use of natural resources.
    Sustainable development stands for meeting the needs of the current generation without jeopardizing the ability of futures generations to meet their own needs. In other words, a better quality of life for everyone, now and for generations to come. It offers a vision of progress that integrates immediate and longer-term objectives, local and global action and regards social, economic and environmental issues as inseparable and interdependent components of human progress. This can be brought about only by using the existing resources wisely.
    So, the correct answer is option A.
  • Question 8
    1 / -0
    Which one of the following is costlier source of energy?
    Solution

    • Petroleum is called liquid gold or black gold. It is so-called to imply its significance. 
    • Petroleum has a high value in the market. It also serves directly or indirectly as a source for many organic products which are useful to humans.
    So, the correct answer is option C.

  • Question 9
    1 / -0
    In ...................... strategy for saving the environment, things are used again and again.
    Solution
    In reuse strategy for saving the environment, things are used again and again. Many items found around the home can be used for different purposes. So before you throw those items away, think about how they can be reused.
  • Question 10
    1 / -0
    Which one of the following statements is not correct?
    Solution
    • Forests form a very important part of the ecosystem. They play a major role in maintaining the ecosystem and climate. 
    • Their roots hold the soil particles firmly together and protect them from erosion. 
    • In return, the soil contains various nutrients that help the forests in maintaining the nutritive value for their plants. 
    • They provide a habitat for a large scale of plants and animals living in them. They help in providing them with food, nutrition, and shelter. 
    • Forests help in the formation of rain by giving out water vapor from their leave during transpiration which forms the cloud. 
    So, the answer is option C.
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