Page 133 - open office
P. 133

Non-Renewable Resources: It includes the resources which are limited and cannot be recycled or recreated
                        easily,  such as coal,  oil and  natural  gas,  fossil  fuels, etc. Non-renewable  resources can  be  called inorganic
                        resources if they come from non-living things, for example minerals, land, soil and rocks. Some non-renewable
                        resources come from living things such as fossil fuels. They can be called organic non-renewable resources.
                     10.  What is environment?
                    Ans.  Environment refers to the abstract conditions in which a person lives. The word environment is derived from the
                        French word ‘environ’ which means ‘surrounding’.
                        With respect to nature, it can be termed as a shelter or habitat for living and non-living organisms where
                        they can be properly placed, can find food, and can breed freely. It is formed by air, sky, trees, rivers, oceans,
                        mountains, etc. that surround our Earth.
                 B.  Application based questions:                                                         L if e Sk il l s  &  V a l ues
                      1.  Ananya uses wood and cow-dung cakes as fuel in her kitchen She is not aware that these fuels pollute the
                        environment. Suggest some alternative eco-friendly fuels to her to avoid air pollution.
                    Ans.  Biogas and biofuels
                      2  Suppose you tell your sibling about the importance of environmental conservation. You have to tell him about
                        appliances that function on solar power. What would you tell him?
                    Ans.  Solar heaters, solar cookers, solar lights, etc.


                 Unsolved Exercise


                                                                Section A

                                                        (Objective Type Questions)

                 A.  Multiple choice questions:
                     1.  Which of the following is used to conserve our natural resources?
                        i.  Furniture Conservation                            ii.  Water Conservation
                       iii.  Money Conservation                               iv.  Clothes Conservation
                     2.  The word environment is derived from the French word ‘environ’ which means ...................................
                       i.  ecosystem                                          ii.  green
                       iii.  surroundings                                     iv.  nature
                     3.  Which of the following is a precautionary measure against the use of plastic?
                       i.  Planting trees                                     ii.  Using solar energy
                       iii.  Using plastic containers                         iv.  Using cloth bags
                     4.  What includes all the living things which are living together on the Earth and helping each other to complete
                       the life cycle of the environment?
                       i.  Ecosystem                                          ii.  Natural resources
                       iii.  Biodegradable substances                         iv.   Environment
                     5.  To live a healthy life and to save Earth, there is a need to make people aware of the use of
                       .................................. products which do not bring or cause damage to the environment.
                       i.  Cost-effective                                     ii.  Biodegradable
                       iii.  Natural                                          iv.  Green
                     6.  Which of the following is a harmful effect of plastic?
                       i.  Releases harmful gases on burning                  ii.  Causes lung  cancer
                       iii.  Causes congenital disease in kids                iv.  All of these




                                                                                                     Green Skills   133
   128   129   130   131   132   133   134   135   136   137   138