Sustainable Management of Natural Resources – MCQs

Correct Answer: B. Meet present needs while conserving resources for future generations

Sustainable management aims to use natural resources responsibly and maintain their availability and ecological functions over time. It balances human needs, environmental protection and economic well-being.

It does not mean that people must stop using resources. Instead, resources should be used efficiently, waste should be reduced, and ecosystems should be protected so that future generations can also benefit.

Correct Answer: B. Reduce, Reuse, Recycle

Reduce means consuming fewer resources and preventing unnecessary waste. Reuse means using an item again instead of throwing it away. Recycle means processing suitable waste materials into materials or products that can be used again.

Preventing unnecessary consumption and reusing products can often avoid more resource use than recycling alone.

Correct Answer: C. Avoiding unnecessary packaging and purchases

Reducing consumption prevents waste before it is created. Choosing durable products, avoiding excess packaging and buying only what is needed can reduce demand for raw materials, energy and transport.

This is often more resource-efficient than dealing with waste after it has already been produced.

Correct Answer: A. Using a glass jar again to store food

Reuse means using a product again, either for its original purpose or for a suitable new purpose, without necessarily processing it into a new material.

Reusing jars, bags, containers and books can reduce demand for new products and lower the amount of waste generated.

Correct Answer: B. Recycling can recover useful materials from suitable waste

Recycling processes materials such as paper, glass, metals and certain plastics so they can be used again in manufacturing. It may reduce demand for virgin raw materials and lower waste sent to landfills.

Recycling processes require energy and suitable infrastructure, and not every material can be recycled effectively. Correct sorting helps improve recycling outcomes.

Correct Answer: B. Forests provide habitats, protect soil and support the water cycle

Forests support biodiversity, store carbon, help regulate local climate, protect soil from erosion and influence water movement through landscapes. They also provide food, fuel, timber, medicines and livelihoods for many communities.

Sustainable forest management aims to maintain these ecological functions while allowing responsible use of forest resources.

Correct Answer: A. The variety of living organisms and ecosystems

Biodiversity includes diversity within species, between species and among ecosystems. Forests can contain trees, shrubs, insects, birds, mammals, fungi and microorganisms interacting with one another.

Maintaining biodiversity supports ecological processes and helps ecosystems respond to environmental changes.

Correct Answer: B. Uncontrolled deforestation and overexploitation

Deforestation removes forest cover, while overexploitation occurs when resources are harvested faster than they can recover. Both can destroy habitats, increase soil erosion and disrupt water cycles.

Other pressures include forest fires, mining, road construction and the conversion of forest land to other uses.

Correct Answer: C. People and groups who depend on, manage or are affected by forests

Stakeholders can include local and Indigenous communities, forest departments, conservation organisations, industries, researchers and people who benefit from forest products and ecosystem services.

Different stakeholders may have different needs and priorities. Effective forest management considers these interests while protecting biodiversity and long-term forest health.

Correct Answer: B. They may have valuable ecological knowledge and depend directly on forest resources

Local communities often possess detailed knowledge of local species, seasons, water sources and sustainable harvesting practices. Their livelihoods may also depend on forest products and ecosystem services.

When communities participate in decisions and receive fair benefits, they can help monitor forests, prevent illegal exploitation and support long-term conservation.

Correct Answer: B. To protect species, habitats and ecological balance

Wildlife conservation aims to protect wild animals, plants and the habitats on which they depend. It helps prevent extinctions and maintains interactions such as pollination, seed dispersal and food-web relationships.

Conservation may include habitat protection, restoration, anti-poaching measures, scientific monitoring and community-based programmes.

Correct Answer: A. To protect wildlife and natural habitats under applicable rules

Protected areas help conserve species, habitats and ecological processes. The rules and permitted activities differ according to the category of protected area and applicable law.

Protected areas can support research, monitoring and carefully managed education or tourism while placing conservation at the centre of management.

Correct Answer: A. Managing land and water within an area that drains to a common outlet

A watershed is an area of land from which water drains into a common river, lake or other outlet. Watershed management considers rainfall, vegetation, soil, streams and human activity as connected parts of one system.

Measures such as contour bunding, check dams, vegetation restoration and rainwater harvesting can reduce runoff, limit erosion and improve water availability.

Correct Answer: A. Collecting and storing rainwater for later use or groundwater recharge

Rainwater harvesting collects rainfall from rooftops or other suitable surfaces and stores it in tanks or directs it to structures that help recharge groundwater.

It can reduce surface runoff, supplement water supplies and improve resilience during dry periods. Systems need suitable design, maintenance and measures to prevent contamination.

Correct Answer: B. By storing rainfall and potentially improving groundwater recharge

Rainwater harvesting helps capture water that might otherwise flow away as surface runoff. Stored water can be used later for suitable purposes, while properly designed recharge structures allow some water to enter the ground.

The effectiveness of harvesting depends on rainfall, catchment area, soil and geology, storage capacity and maintenance.

Correct Answer: B. Submergence of land and displacement of people

Large dams can provide irrigation water, drinking water, flood management and hydroelectricity. However, reservoirs may submerge settlements, agricultural land and forests, sometimes requiring communities to relocate.

Dams can also change river flow, sediment movement and fish migration. Their benefits and impacts should be evaluated through careful planning and consultation.

Correct Answer: B. Excessive extraction can lower water tables and reduce availability

Groundwater is stored beneath the Earth's surface in soil and rock formations. It is replenished in many areas by infiltration of rainfall and surface water, but recharge rates vary.

If extraction exceeds recharge over time, water levels may fall, wells can dry up and connected rivers or wetlands may be affected. Efficient water use and recharge protection help conserve groundwater.

Correct Answer: B. Planting suitable vegetation and maintaining ground cover

Plant roots help bind soil, while leaves and ground cover reduce the impact of raindrops. Vegetation can slow runoff and improve infiltration, depending on soil, slope and local conditions.

Other watershed measures include contour farming, terracing, check dams and protecting streamside vegetation.

Correct Answer: B. They are finite resources and their use can cause pollution

Coal and petroleum are non-renewable fossil fuels that form over geological timescales. Their extraction and combustion can cause habitat damage, air pollution, greenhouse-gas emissions and other environmental impacts.

Using energy-efficient technologies, reducing waste and developing suitable lower-emission alternatives can help reduce dependence on these resources.

Correct Answer: C. Using public transport, walking or cycling when practical

Public transport can move more people using less fuel per passenger than many individual car journeys. Walking and cycling avoid direct fuel use for short trips.

Other conservation measures include maintaining vehicles, planning journeys efficiently and choosing fuel-efficient or suitable alternative transport options.

Correct Answer: B. Development that meets present needs without compromising future generations' ability to meet their own needs

Sustainable development seeks to balance environmental protection, social well-being and economic progress over the long term.

It encourages efficient resource use, pollution prevention, protection of ecosystems and fair access to resources while recognising the needs of future generations.

Correct Answer: B. Overuse today may reduce the availability and quality of resources in the future

Many resources are limited or regenerate slowly. Excessive extraction, pollution and habitat destruction can make them less available or less useful over time.

Responsible management helps maintain resource quality and ecosystem services so that people in the future can also benefit from them.

Correct Answer: B. Using efficient irrigation methods suited to the crop and local conditions

Efficient irrigation can deliver water closer to where crops need it and reduce avoidable losses. Drip irrigation, careful scheduling, soil-moisture monitoring and suitable crop selection can improve water-use efficiency.

The best method depends on crop type, soil, climate, water quality, costs and local farming conditions.

Correct Answer: B. It helps recover recyclable materials and manage organic and hazardous waste appropriately

Separating waste into suitable categories, such as organic waste, recyclable materials and domestic hazardous waste, can improve treatment and recovery.

For example, clean paper and metal may be easier to recycle when not mixed with food waste. Batteries, chemicals and electronic waste may require specialised collection and treatment.

Correct Answer: B. Potential improvement in habitat, soil protection and ecosystem recovery

Suitable native trees can provide food and shelter for local wildlife, help stabilise soil and support ecosystem recovery. Native species are often adapted to local environmental conditions.

Restoration must be planned carefully: the right species, site conditions and long-term maintenance matter. Planting trees alone does not instantly recreate the complexity of an old, mature forest.

Correct Answer: B. It can help create locally appropriate rules and shared responsibility

Community participation can bring local knowledge into decisions, improve transparency and help people share responsibility for resources such as forests, grazing lands and water sources.

Participation alone does not guarantee success. Fair rules, inclusive decision-making, monitoring, conflict resolution and support from relevant institutions are also important.

Correct Answer: B. Using energy-efficient appliances and switching off unnecessary lights

Energy-efficient appliances can deliver the same service using less electricity. Switching off lights and equipment when not needed avoids unnecessary consumption.

Reducing electricity demand can lower bills and reduce the need for energy generation, which may also reduce fuel use and emissions depending on the electricity supply mix.

Correct Answer: B. To help protect water quality and regulate runoff

Catchment areas supply water to rivers, reservoirs and other water bodies. Vegetation and responsible land management can reduce erosion and the movement of sediment and some pollutants into water sources.

Protecting catchments can support cleaner water, reduce sedimentation and help maintain aquatic ecosystems. It should be combined with appropriate pollution control and land-use planning.

Correct Answer: C. Harvesting within sustainable limits while protecting habitats and allowing regeneration

Sustainable forest use considers how quickly resources can regenerate, which species and habitats may be affected, and how forest-dependent communities can maintain their livelihoods.

Careful harvesting, protection of sensitive areas, restoration and monitoring can help maintain forest functions over time.

Correct Answer: B. Conservation, efficient use, restoration and community participation

Sustainable management combines several approaches: reducing waste, using resources efficiently, restoring degraded ecosystems, protecting biodiversity and involving relevant stakeholders in decisions.

For water, this may mean harvesting rainwater and managing watersheds. For forests, it may mean protecting habitats and allowing regeneration. For materials, it includes reducing consumption, reusing items and recycling suitable waste.