Explore NCERT Solutions

Chapter 1. Resources

Exercise NCERT

Chapter 1. Resources:

---

Q1. Answer the following questions.

(i) Why are resources distributed unequally over the earth?

Answer: The Distribution of resources depends on various factors such as physical nature of the Place . the physical factors include terrain, climate, height above sea level, etc since these factors vary in level, etc. since these actors vary in different parts of the world, resources are not distributed over the earth.

(ii) What is resource conservation?

Answer: Resource development is the method of utilizing our intelligence in oder to improve the quality, usability and Utiliry  o a resource.

(iii) Why are human resources important?

Answer: Human resources are important because they have an intelligent mind which can make best use o nature to Create more resources Had humans not been there, Different substances would not have been resources . Their utility can only be realized by human beings.

(iv) What is sustainable development?

Answer: We should use resources in such a balanced way that we satisfy our needs our needs as well as conserve them for future. This concept is Called  Sustainable development.

Q2. Tick the correct answer.

(i) Which one of the following does NOT make substance a resource?

(a) utility

(b) value

(c) quantity

Answer: (c)

(ii) Which one of the following is a human made resource?

(a) medicines to treat cancer

(b) spring water

(c) tropical forests

Answer:  ( a)

(iii) Complete the statement. Biotic resources are

 (a) derived from living things

 (b) made by human beings

 (c) derived from non-living things

Answer: (a)

Q3. Differentiate between the followings.

(a) Potential and actual resources (b) Ubiquitous and localised resources

Answer: 

Potential resources	Actual resource
A potential resource is not being used currently A potential resource can prove useful and become an actual resource in the future. Examples: uranium Deposits in Ladakh. The entire quantity o a potential resource may not be known.	An actual resource is one which we use currently. An actual resource might have been a potential resource in the past. It may end up in They future. Examples: coal deposits. The Actual quantity of an actual resource is known.

Answer: (B)

Ubiquitous resources	Localized resources
A ubiquitous resource is one which is found all over the world . Its presence is not governed by physical conditions. Examples: air	A localized resource is one which is found in a particular region or physical condition. The presence of a localized resource is governed by physical conditions. Examples: minerals.

Q.4 Activity

Rahiman paani raakhiye,

Bin paani sab soon.

Paani gaye na ubere Moti,

manus, choon…”

[Says Rahim, keep water, as without water there is nothing. Without water pearl, swan and dough cannot exist. ] These lines were written by the poet Abdur Rahim Khankhana, one of the nine gems of Akbar’s court. What kind of resource is the poet referring to? Write in 100 words what would happen if this resource disappeared?

• The resource referred to by the poet is the water. It is one of the most indispensable resources of life. It can be said to be one of the preconditions of lie, like air firstly, water serves the most basic purpose o drinking, without which lie is not possible. In the absence of water, one would be unable to clean clothes, utensils, or even take a birth . farmers  depend on water for irrigation. Raingation. Is so important for proper agriculture. Water is also used in cooking food. Nowadays water has proved to be a useful source of electricity. Bisedes human beings, plant require water is also required for various industrial purposes in factories. In short, no form of life can go on without water.

Chapter 1. Resources

Additional - Question

Additional - Question:

---

Que: What are Resources?

Ans: Anything that can be used to fulfil a need and has some value is a resource. Substances like water, electricity, vegetables, cars and textbooks all have a specific utility and hence they are considered as resources. Some resources are economically valuable while some are not. Beautiful scenery does not have an economical value like gold, but it is equally important to satisfy human utility. Some resources may gain value with time while some may lose their value. 

Que: What are changes between Time and Technology?

Ans: Time and technology play a significant role in changing substances into valuable resources. These two factors are related to the needs of the people. As people themselves are the most significant resource, their ideas, knowledge, inventions and discoveries with time lead to the formation of more resources. With the advancement of technology, every discovery or invention leads to many other subsequent ones. Here are a few examples:

• The discovery of fire gave the idea of cooking.

• Agricultural development came out as a result of domestication of animals.

• The invention of the wheel caused the invention of various modes of transport.

• The technology to produce hydroelectricity has resulted in the successful harnessing of energy present in fast-flowing water.

​Que: What are The Principles of Sustainable Development?

Ans: 

• Respect and care for all forms of life

• Improve the quality of human life 

• Conserve the earth’s vitality and diversity 

• Minimise the depletion of natural resources 

• Change personal attitude and practices towards the environment 

• Enable communities to care for their own environment

​Que: Explain how resources have value.

Ans: Resources have a value if they are of any use to the people, directly or indirectly. The resources can either have a commercial value or they do not have a commercial value. Here are some examples:

Platinum is a resource that has economic value as we make many valuable products from it like jewellery.

A beautiful landscape that you observe may not have economic value but is still said to be a resource as it is functional in providing pleasure to the human mind.

Que: What is wind energy and why is it becoming important?

Ans: Wind energy is the use of power of wind to generate electricity which we can use for other purposes. A turbine is rotated using wind energy and this generates electricity we can use. 

As wind turbines are an environmentally clean and sustainable renewable form of electricity, wind power is gaining popularity. Wind energy is also emerging as an economically competitive source of energy as compared to most conventional power sources. 

Que: Why is a human resource important?

Ans: Human resources are important because humans are sometimes skilled and can be trained to make the best use of nature in order to use the existing resources and also generate more resources using the knowledge and technology that they gain over time.

Que: Mention and define the major types of natural resources.

Ans: Broadly, there are two types of resources:

Renewable Resources whose availability is not affected by human consumption. These resources get renewed quickly even with constant human usage. 

Non-Renewable Resources which have a limited supply and are highly affected by human consumption. These resources decline with human consumption. They take thousands of years to get formed. For example, coal and petroleum.