Page 109 - Data Science class 10
P. 109

4.  Write five man-made disruptions that cause ecological imbalance.
             Ans.  The five man-made disruptions are:
                  ●  Deforestation
                  ●  Degradation of land and soil erosion
                  ●  Overexploitation of resources
                  ●  Industrial and atmospheric pollution
                  ●  Faulty mining practices

            B.  Long answer type questions:
               1.  What is the difference between Natural and Artificial Environment?
             Ans.                Natural Environment                             Artificial Environment

                     • Natural environment consists of all the living and non- • Artificial environment is one which is formed by the
                     living things. It is the interaction of all living beings,   conversion of natural minerals or resources by people
                     climate and natural resources.                   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.  Write short notes on:
                  a.  Ecosystem
                  b.  Crop Rotation
              Ans.  a.   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.
                  b.   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.
               3.  Explain the importance of education towards sustainable development.                      [NCERT]
             Ans.   Education is the most important factor for sustainable development. Children who have gone to school will be able to
                  do jobs so that they can take care of themselves and their families. Education helps us become aware of our role as a
                  responsible citizen. We should:
                  ●  use the facilities present in our areas.
                  ●  take our friends to school.
                  ●  help friends study.
                  ●  stop friends from dropping out of school.
               4.  List some ways in which we can use resources sensibly.                                    [NCERT]
             Ans.  We can do the following in order to use our resources sensibly:
                  ●  Reusing paper, glass, plastic, water, etc.
                  ●  Taking cloth bags to market carrying fruits and vegetables.
                  ●  Donate things we do not use such as clothes, books, furniture, food, etc.
                  ●  Buy and eat seasonal fruits and vegetables from local growers.
                  ●  Repair leaking taps and pipes to avoid wasting water.
                  ●  Sort and treat garbage before disposing off.

            C.  Competency-based/Application-based questions:                                           Communication

               1.  On the last day of your class before the start of the summer holidays, you saw some unwanted books and material lying
                  here and there. How do you wish to dispose of them following green skills?
             Ans.  Give them to a scrap dealer for recycling of paper.



                                                                                               Green Skills-II  107
   104   105   106   107   108   109   110   111   112   113   114