Page 100 - IT 402 v2.0 class 10
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Section B
                                                 (Subjective Type Questions)
        A.  Answer the following questions:

              .   hat is the difference between Natural and  rtificial  nvironment
          Ans.
                            Natural Environment                             rtificial  n ironment

                 Natural environment consists of all the living      rtificial environment is one which is formed by
                 and non-living things. It is the interaction of all   the conversion of natural minerals or resources
                 living beings, climate and natural resources.  by people in the course of development in
                                                                accordance with their needs. For example
                                                                construction of buildings, roads, railway lines, etc.

                 It is healthy and enables a diverse ecosystem.    It destroys ecosystem but it is required by the
                                                                society in which we live.


             2.  List the types of natural resources.
          Ans.   There are two types of natural resources:
                Renewable Natural Resource: It consists of water, soil, wind, etc.
                Non-Renewable Natural Resource: It consists of coal, petrol, etc.
             3.  What is rain water harvesting?
          Ans.   It is the process or technique of collection and storage of rain water into reservoirs or tanks. Rooftop harvesting is
              a kind of rain water harvesting in which the rain water does not get wasted and is saved for use as drinking water.
             4.  What is the meaning of sustainable development?
           ns.   Sustainable development is the development that satisfies the needs of the present without compromising the
              capacity of future generations, guaranteeing the balance between economic growth, care for the environment
              and social well-being.
             5.  Why do you think the United Nations has made the 17 sustainable development goals?

          Ans.  The 17 SDGs have been made to take care of important issues facing businesses, governments and society. Some
              of these issues are poverty, gender equality, water use, energy, climate change and biodiversity. Countries are
              now making policies and regulations that will promote sustainable systems needed in all economic sectors to
              provide a secure  affordable and sustainable economy.

             6.  Write short notes on:
              i.  Ecosystem
              ii.  Crop Rotation
          Ans.  i.  It is a system which consists of plants, animals, and human beings who are dependent on each other. The
                relationship between living organism and their environment forms an ecosystem and human society is the
                most important and integral part of this environment.
              ii.  It is the practice of planting different crops in the same farm in order to enhance soil fertility and maintain the
                bind of the soil.
             7.  List some ways in which we can use resources sensibly.                                  [NCERT]
          Ans.  We can become responsible for our own environment by
              i.   reusing paper, glass, plastic, water, etc.
              ii.  taking cloth bags to market carrying fruits and vegetables.
              iii. donating things we do not use such as clothes, books, furniture, food, etc.

              iv. buying and eating seasonal fruits and vegetables from local growers.

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