Chapter 1
Resources Utilisation and Development
Highlights
- A. Tick the correct option
- B. Fill in the blanks
- C. Match the following
- D. Correct the following sentences
- E. Answers the following questions
EXERCISE
A. Tick the Correct Option
- 1. Future generations will depend on solar energy because it is-
Answer: vacuole
- 2. Which one of the following resources can be recycled?
Answer: vacuole
- 3. All the abiotic resources include-
Answer: vacuole
- 4. Available resources which are not being tapped fully for the time being are called-
Answer: vacuole
- 5. Which one does not promote conservation of resources?
Answer: vacuole
B. Fill in the blanks.
- 1. ___________ can be used again and again after processing.
- 2. On the basis of occurrence, resources are classified into two categories ___________ and ___________.
- 3. With advancement of technology, availability of ___________ and ___________ labour are necessary for resource utilisation.
- 4. Developed countries are economically self-sufficient and ___________ advanced.
- 5. The ___________ resources need a detailed survey for estimating their quantity and quality.
C. Match the following :
- Column A
- 1. Golgi Complex
- 2. Ribosomes
- 3. Chromosomes
- 4. Dead cells
- 5. Photosynthesis
- Column B
- (a) genes
- (b) cork
- (c) chloroplasts
- (d) packaging center
- (e) protein synthesis
C. Write a technical term or an appropriate word for each of the following statements.
- 1. Any material which is used to satisfy human needs.
Answer: Sharing of chores reduces the burden.
- 2. Resources which cannot be renewed.
Answer: The older family member pass on the family traditions to the younger generation.
- 3. Resources which are created by human beings.
Answer: There is more interaction between parents and children in nuclear families.
- 4. The resources which are surveyed and developed.
Answer: A surname is a family name.
- 5. Sustainable and optimum utilisation of resources.
Answer: A surname is a family name.
D. Answer the following questions in brief.
- 1. ‘Utility and value of a resource vary from time to time and place to place.’ Give any three examples to support the statement.
Answer: The (main) factors that determine the shape of a cell are location and function.
- 2. Why are human beings considered the most important resource for development?
Answer: Distinguish between unicellular and multicellular organisms are
Unicellular organisms are made up of a single cell. e.g., Euglena and Amoeba.
Multicellular organisms are made up of many cells. e.g., Humans and Birds.
- 3. Differentiate between biotic and abiotic resources. Give examples for each.
Answer: All organisms are made up of cells. A cell is capable of independent existence. Due to this, cell is called the structural and functional unit of life.
- 4. Why is there a need for resource planning? Give any three reasons.
Answer: Mitochondria is known as the Powerhouse of the cell.
Mitochondria are the site of cellular respiration. Energy is produced during this process. Due to this, mitochondria are called the Powerhouse of the cell.
- 5. Mention any six factors on which the utilisation of resources depends.
Answer: All organisms are made up of cells. A cell is capable of independent existence. Due to this, cell is called the structural and functional unit of life.
E. Answer the following questions.
- 1. ‘Human needs and wants are neither uniform in all parts of the world nor static over the years.’ Explain the statement giving suitable examples.
Answer: All organisms are made up of cells. A cell is capable of independent existence. Due to this, cell is called the structural and functional unit of life.
- 2. Distinguish between renewable and non-renewable resources. Which one of the two would you prefer to use and why?
Answer: All organisms are made up of cells. A cell is capable of independent existence. Due to this, cell is called the structural and functional unit of life.
- 3. What is meant by sustainable development? Why is sustainable development the need of the hour?
Answer: All organisms are made up of cells. A cell is capable of independent existence. Due to this, cell is called the structural and functional unit of life.
- 4. Describe the various basis of classification of resources with the help of examples.
Answer: All organisms are made up of cells. A cell is capable of independent existence. Due to this, cell is called the structural and functional unit of life.
Related Topics
- Chapter 1 The Cell – Its Structure and Functions
- Chapter 2 Microorganisms: Friends or Foes
- Chapter 3 Metals and Non-Metals
- Chapter 4 Force and Pressure
- Chapter 5 Friction
- Chapter 6 Sources of Energy
- Chapter 7 Combustion
- Chapter 8 Conservation of Plants and Animals
- Chapter 9 Crop Production and Its Management
- Chapter 10 Refraction and Dispersion of Light
- Chapter 11 The Human Eye
- Chapter 12 Sound
- Chapter 13 Synthetic Fibres and Plastics
- Chapter 14 Reproduction in Animals
- Chapter 15 Reaching the Age of Adolescence
- Chapter 16 Electric Current and Its Chemical Effects
- Chapter 17 Stars and Solar System
- Chapter 18 Earthquakes
- Chapter 19 Pollution of Air
- Chapter 20 Pollution of Water