{"id":17085,"date":"2021-01-13T16:44:54","date_gmt":"2021-01-13T11:14:54","guid":{"rendered":"https:\/\/ncertsolutions.guru\/?p=17085"},"modified":"2021-01-13T16:44:54","modified_gmt":"2021-01-13T11:14:54","slug":"ncert-solutions-for-class-12-economics-chapter-15","status":"publish","type":"post","link":"https:\/\/ncertsolutions.guru\/ncert-solutions-for-class-12-economics-chapter-15\/","title":{"rendered":"NCERT Solutions for Class 12 Economics Chapter 15 Environment and Sustainable Development"},"content":{"rendered":"

Detailed, Step-by-Step NCERT Solutions for Class 12 Economics<\/a> Chapter 15 Environment and Sustainable Development Questions and Answers were solved by Expert Teachers as per NCERT (CBSE) Book guidelines covering each topic in chapter to ensure complete preparation.<\/p>\n

Environment and Sustainable Development NCERT Solutions for Class 12 Economics Chapter 15<\/h2>\n

Environment and Sustainable Development Questions and Answers <\/span>Class 12 Economics Chapter 15<\/h3>\n

Question 1.
\nWhat is meant by environment?
\nAnswer:
\nEnvironment is the sum total of all surroundings of a living organism, including the biotic and abiotic j factors that influence each other.<\/p>\n

Question 2.
\nWhat happens when the rate of resource extraction exceeds that of their regeneration?
\nAnswer:
\nWhen the rate of resource extraction exceeds that of their regeneration, it results in an environmental crisis, which is the situation today all over the world. As the demand for resources goes beyond the rate of regeneration of the resources, the pressure on the absorptive capacity of the environment increases tremendously. The supply is unable to meet this excess demand, thereby resulting in environmental crisis.<\/p>\n

\"NCERT<\/p>\n

Question 3.
\nClassify the following into renewable and non-renewable resources.
\n(i) trees
\n(ii) fish
\n(iii) petroleum
\n(iv) coal
\n(v) iron-ore
\n(vi) water
\nAnswer:
\nThe table below classifies the given resources into renewable and non-renewable:<\/p>\n\n\n\n\n\n\n
Renewable Resources<\/strong><\/td>\nNon-renewable Resources<\/strong><\/td>\n<\/tr>\n
Trees<\/td>\nPetroleum<\/td>\n<\/tr>\n
Fish<\/td>\nCoal<\/td>\n<\/tr>\n
Water<\/td>\nIron-ore<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Question 4.
\nTwo major environmental issues facing the world today are ………………. and …………………..
\nAnswer:
\nTwo major environmental issues facing the world today are global warming<\/span> and ozone depletion.<\/span><\/p>\n

\"NCERT<\/p>\n

Question 5.
\nHow do the following factors contribute to the environmental crisis in India? What problems do they
\n(i) Rising population
\n(ii) Air pollution
\n(iii) Water contamination
\n(iv) Affluent consumption standards
\n(v) Illiteracy
\n(vi) Industrialisation
\n(vii) Urbanisation
\n(viii) Reduction of forest coverage
\n(ix) Poaching
\n(x) Global warming
\nAnswer:
\n(i) Rising population: The population in India has been rapidly increasing since 1921. Population explosion has created tremendous environmental and ecological imbalances. Limited availability of resources makes the government face the problem related to their allocation.<\/p>\n

(ii) Air pollution: Industries and vehicles are the primary source of air pollution in India. It contributes towards global warming. Government needs to take corrective measures to reduce air pollution.<\/p>\n

(iii) Water Contamination: Industrial wastes are often channelised into rivers and canals of the adjoining areas, thereby causing water pollution. The consequence is the spread of water-borne diseases, implying damage to human as well as animal life, particularly the fish. This requires government to keep a regular check on and penalize the industries which are situated near a water body and dispose waste in the water.<\/p>\n

(iv) Affluent Consumption Standards: Affluent consumption standards of the have placed a huge stress on the environment. Consequently, many resources have become extinct. Limited availability of resources makes the government face the problem related to their allocation.<\/p>\n

(v) Illiteracy: Illiterate people do not understand the importance of environment. They use the natural resources inefficiently or even misuse them. The government must take steps to educate people and make them aware of the need to protect the environment.<\/p>\n

(vi) Industrialisation: A tremendous pressure has been created on environment with the advent of industrial revolution. It has resulted in large scale industrial wastages, causing environmental pollution. This requires government to keep a regular check on and penalize the industries which pollute the environment.<\/p>\n

\"NCERT<\/p>\n

(vii) Urbanisation: Migration of people from rural to urban areas increases the pressure on existing infrastructural facilities in the cities. Improper arrangement for delivery of waste water and sewage has polluted the atmosphere. The government should be capable of meeting the increasing demand for such sendees in urban areas.<\/p>\n

(viii) Reduction of Forest Coverage: Felling of forests beyond the permissible limits has been a threat towards India’s vegetation and wildlife. The government should keep a check on the amount of trees being cut.<\/p>\n

(ix) Poaching: Poaching is dangerous to our environment. It leads to endangerment of different species, thereby disturbing the ecological balance.<\/p>\n

(x) Global Warming: Global warming is a gradual increase in the average temperature of the earth’s lower atmosphere as a result of the increase in greenhouse gases. It results in:<\/p>\n