Important questions based on NCERT syllabus for Chapter 16 - Management of Natural Resources:
Question-1: Why do natural resources need to be used judiciously?
Solution: Natural resources need to be used judiciously, because they are not unlimited and with the human population increasing at a tremendous rate due to improvement in health-care, the demand for all resources is increasing at an exponential rate. The management of natural resources requires a long-term perspective so that these will last for the generations to come and will not merely be exploited to the hilt for short term gains.
Question-2: Explain the role of forests in conserving the environment. How do the forests get depleted? What are its consequences?
Solution: Role of forest sin conservation of forest:
(i) Prevent soil erosion and help in maintaining fertility of soil
(ii) It provides shelter to wild animals and are areas that sustain biodiversity
(iii) It reduces atmospheric pollution
(iv) It increase humidity and frequency of rainfall
The forests get depleted due to forest fires, urbanisation, industrialisation, overgrazing by animals, etc.
The consequences of deforestation will be:
(i) Change in climate and global warming
(ii) Soil erosion and floods
(iii) Extinction of wildlife, etc.
Question-3: What is Biodiversity? Name one forest in Bengal which is known to be a good example of a conserved forest.
Solution: Biodiversity is the variety of different types of life found on Earth and the variations within species. It is a measure of the variety of organisms present in different ecosystems. This can refer to genetic variation, ecosystem variation, or species variation (number of species) within an area, biome, or planet.
The Arabari forests of Bengal are known to be a good example of a conserved forest entirely due to the integlligent strategy followed by the forest department. They included the villagers into protecting their forest in return for the labour the villagers were paid and harvesting benefits were shared. They were also allowed to collect wood and fodder on the payment of a nominal fee.