A. Multiple Choice Questions
1.
Answer: d
2.
Answer: c
3.
Answer: a
4.
Answer: a
5.
Answer: c
B. Fill in the Blanks
1.
Answer: resource
2.
Answer: Time, technology
3.
Answer: utilised
4.
Answer: fuel, gas
5.
Answer: human, economic, social
6.
Answer: human resource
7.
Answer: science
8.
Answer: research
9.
Answer: conservation
10.
Answer: primary causes
C. True or False
1.
Answer: True
2.
Answer: True
3.
Answer: True
4.
Answer: True
5.
Answer: False
D. Match the Following
1.
Answer: d
2.
Answer: c
3.
Answer: e
4.
Answer: a
5.
Answer: b
Geography Class 8 – Chapter 1: Resources (Short Answer Type Questions Pg. No. 127)
E. Short Answer Type Questions – Geography Chapter 1: Resources
1. What do you mean by resources?
Answer:
Resources are anything found in nature or made by humans that have value and are useful in satisfying our needs.
2. Define continuous resources.
Answer:
Continuous resources are those that are constantly available and do not get exhausted by human use. Examples include solar energy and tidal energy.
3. What is the name given to the type of resources that have limited stock?
Answer:
Resources that have limited stock and cannot be replenished quickly are called non-renewable resources.
4. List three important ways to conserve natural resources.
Answer:
- Plant more trees.
- Avoid wastage of water, electricity, and paper.
- Use public transport to reduce fuel consumption.
5. Give two major principles of sustainable development.
Answer:
- Recycle and reuse resources to minimize waste.
- Avoid excessive consumption to preserve resources for future generations.
F. Long Answer Type Questions
1. List and briefly define the three broad types of resources.
Answer:
The three broad types of resources are:
- Natural Resources: Resources that occur naturally and support life, such as water, air, minerals, fossil fuels, and forests.
- Human Resources: Human beings who develop and utilize resources using their skills, knowledge, and efforts.
- Human-Made Resources: Resources created by humans, such as machines, buildings, and infrastructure, to help in the development and use of natural resources.
2. How are natural resources classified?
(a) On the basis of their origin
Answer:
- Biotic Resources: Living resources like plants, animals, and insects.
- Abiotic Resources: Non-living resources like land, minerals, soil, water, and climate.
(b) On the basis of their stage of development
Answer:
- Actual Resources: Resources whose quantity and quality are known and are being used, like oil reserves and iron ore deposits.
- Potential Resources: Resources known to exist but not yet utilized, like waterfalls for generating electricity or solar energy.
(c) On the basis of their renewability
Answer:
- Renewable Resources: Resources like soil, water, and forests that can be replenished naturally in a short time.
- Non-renewable Resources: Resources like coal, petroleum, and iron ore that take millions of years to form and are exhausted once used.
(d) On the basis of their availability
Answer:
- Continuous Resources: Resources like solar and tidal energy that are constantly available and not affected by human use.
(e) On the basis of their distribution
Answer:
- Ubiquitous Resources: Resources found everywhere, like air, water, and sunlight.
- Localized Resources: Resources found only in specific places, like copper and iron ore.
3. The various natural resources found on our planet are interrelated. How? Prove it with an example.
Answer:
Natural resources are interdependent. For example, cutting down forests affects wildlife habitats, reduces oxygen supply, leads to soil erosion, and impacts people dependent on forests for livelihood. Similarly, air pollution by industries can cause widespread health problems and environmental degradation.
4. What is resource conservation? How is it different from sustainable development?
Answer:
- Resource Conservation is the careful use of resources to prevent their depletion and to allow time for renewal.
- Sustainable Development means using resources wisely without harming the environment, ensuring their availability for future generations while considering social and environmental impacts.
5. How should we manage the use of resources in modern times?
Answer:
We should use resources wisely to ensure there is enough food, water, and means of livelihood for both present and future generations. This includes recycling, reducing wastage, using eco-friendly technologies, and protecting the environment.
G. Distinguish between:
1. Abiotic and biotic resources
Answer:
- Abiotic Resources: Non-living resources like minerals, soil, water, and climate.
- Biotic Resources: Living resources like plants, animals, and microorganisms.
2. Renewable and non-renewable resources
Answer:
- Renewable Resources: Resources that can be naturally replenished quickly, like forests, water, and soil.
- Non-renewable Resources: Resources that take millions of years to form and cannot be replenished quickly, like coal, petroleum, and minerals.
3. Natural and human-made resources
Answer:
- Natural Resources: Resources that occur naturally, such as sunlight, air, water, forests, and minerals.
- Human-Made Resources: Resources created by humans like roads, buildings, machines, and institutions that help in utilizing natural resources.
H. Give reasons:
1. Human resource is considered to be the most important resource.
Answer:
Human resource is the most important because only humans can utilize, develop, and manage natural resources effectively through their skills, knowledge, and innovation.
2. Conservation is such an important issue today.
Answer:
Conservation is important due to rapid population growth, overexploitation of resources, climate change, loss of biodiversity, water scarcity, and environmental degradation. Without conservation, future generations will face shortages and environmental crises.