Management of Natural Resources MCQ

Ans. c) Narmada

Explanation: Sardar Sarovar Dam is built on the Narmada river in a district of Gujarat. In terms of the volume of concrete used while construction, it is the second largest concrete dam all over the world.

Ans. b) Sundar Lal Bahuguna

Explanation: Sundar Lal Bahuguna was an identified environmentalist from Garhwal who started the Chipko Movement or Chipko Andolan. It was a movement for the conservation of forest in India following a philosophy of peaceful resistance. The demonstrators hugged the trees to prevent the loggers from cutting them down.

Ans. d) Conservation

Explanation: Conservation refers to the practice of care and protection of the environment and the resources so that they can exist for future generations while satisfying our needs for today. It includes multiple practices such as nutrient cycling and maintaining the diversity of species.

Ans. a) Reduce, Reuse, Recycle

Explanation: The three R's that help in the conservation of natural resources are Reduce, Reuse, and Recycle.

• Reduce refers to not producing excess waste by purchasing only the essential products smartly. Avoiding disposable products, checking for their durability, and using cloth bags instead of plastic bags are some practices that promote the Reduce of waste to avoid pollution.
• Reuse includes using environmentally friendly and economical products. Reusing paper bags and donating old clothes, furniture, and electrical appliances are some of the ways to practice the reuse of material.
• Recycle involves reusing the products and the by-products by getting creative. For instance, using used paper again to make paper bags is a way to practice recycling

Ans. d) All of the above

Explanation: Wildlife helps in maintaining the ecological balance in nature.

• Wild animals are used in the medicinal field for research. Wild plants are also a source of many drugs and wild places help in relieving the stress of the modern world.
• In agricultural development, wildlife such as animals like buffaloes and cows help in tilling of soil and ploughing. Some small microorganisms also increase the fertility of the soil by being an ideal base for all agricultural activities.
• Wildlife also provides us with basic and raw materials for many industries. It also contributes to increasing trade and for better development.

Ans. a) Silviculture

Explanation: Silviculture refers to the art and science of controlling the growth, establishment, composition, quality, and health of woodlands and forests in order to meet the diverse values and needs of society and landowners in order to replenish the forests.

Ans. d) Botanical Garden

Explanation: A botanical garden is a place for the collection, preservation, cultivation and display of a wide range of plants. The artificial ideal treatment is provided to the plant to prevent their extinction.

Ans. b) on the verge of extinction

Explanation: Endangered species are those that are very likely to get extinct in the near future. Species become extinct mainly due to two reasons which are a loss of genetic variation and a loss of habitat.

Ans. d) Ganga Action Plan

Explanation: The Ganga Action Plan was launched by the Indian government with the objective to control the non-point pollution from human defecation, agricultural runoff, cattle wallowing, and throwing half burnt or unburnt bodies into Ganga.

Ans. b) Zoological Park

Explanation: In-situ conservation refers to conservation on site which involves the conservation of genetic resources of the natural population of animal and plant species such as forest, national parks, natural reserves, etc. Zoological Parks are ex-situ conservation wherein conservation of animals or biodiversity take place outside of their natural habitats.

Ans. b) 6.5 - 7.5

Explanation: Living organisms can ideally survive in only a narrow range of pH changes. A pH range of 6.5 - 7.5 is the most conducive and ideal for most organisms. A pH range of 2.0 - 3.5 will be too acidic. While a range of 9.0 - 10.5 will be alkaline and will affect the living systems, a pH range of 3.5 - 5.0 will also be acidic which affects aquatic life adversely.

Ans. a) Disposal of unburnt corpses in the river

Explanation: Coliform bacteria results in contamination of water and it occurs from human faeces and urine. The disposal of dead bodies or unburnt corpses in the water leads to a leakage of this bacterial into the water from the decomposing bodies.

Discharge of industrial effluents, washing clothes in the river, and immersion of ashes in it contribute to water pollution. However, these factors are not responsible for the contamination by Coliform bacteria.

Ans. c) Conservation of resources

Explanation: Sustainable development involves the concept of management of renewable resources for the natural community. It involves the conservation of resources by checking that the needs of today are met while also ensuring or considering the needs of future generations.

Ans. d) Coliform Count

Explanation: Coliform organisms such as E.Coli are mainly used as an indicator of the presence of faces and the accompanying disease organisms in the water samples. Therefore, the best way by which pollution levels of a water body can be assessed is through the calculation of the number of coliform bacteria.

Ans. a) Khejri Trees

Explanation: Khejri Trees were sacred to the Bishnoi community. Amrita Devi Bhishnoi's faith prohibited her from deforestation or allowing the loggers to cut the trees down. She and 363 other Bishnoi people sacrificed their lives to prevent the cutting of the Khejri trees.

Ans. b) Bhagirathi

Explanation: Tehri dam is the highest built dam in India that is located in Uttarakhand. The length of the dam is about 575 m.

Read More: Alternatives to Dams

Ans. b) i, ii and iv

Explanation: Raising the height of the already existing dams in order to store more water in them to generate more hydroelectricity in turn comes with its share of challenges or disadvantages of dams. For instance, it will lead to the dislocation of the animals and people native to that place. It will cause a huge loss of plants, animals, and farmlands. The agricultural land will also be permanently destroyed due to this construction.

Ans. a) Sal

Explanation: The dominant vegetation of the Arabari forests in Bengal is hardwood Sal which is a well-paid crop commercially. The forests are a part of the Upper Gangetic Plains moist deciduous forests. They are located in the West Midnapore district of West Bengal.

Ans. c) Water Harvesting

Explanation: These ancient structures were used for water harvesting which refers to storing rainwater for domestic purposes. Nadis and Khadins were used in Rajasthan, Bundhis in Uttar Pradesh and Madhya Pradesh, Katta's in Karnataka, and Pynes and Ahars in Bihar.

Read More: Sustainability of Natural Resources

Ans. d) Electricity

Explanation: Electricity is developed by man, therefore it is a manmade or an artificial resource rather than a natural resource. A natural resource is anything that is obtained from nature such as air, water, and soil.

Everything that we use nowadays from food, vehicles, cooking gas, notebooks, etc. are obtained from natural resources present on Earth. A very large portion of our energy supply is through non-renewable sources. This means that once these sources are used they can't be replenished as they take over millions of years to form. Therefore, managing these resources ensures their rational use and minimises their exploitation which will ensure their availability even in the future