Chapter 7
Human Resources
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. Which one of the following is not an area of sparse population?
Answer: vacuole
- 2. Out of every 100 people in the world-
Answer: vacuole
- 3. Which one of the following is false?
Answer: vacuole
- 4. Which one of the following states has the highest density of population in India?
Answer: vacuole
- 5. Which one of the following age-groups represents the productive population group of the population?
Answer: vacuole
B. Fill in the blanks.
- 1.India ranks ___________ in population next to China, in the world.
- 2. Number of children below 15 years and adults above 59 years is defined as ___________ population.
- 3. The growth of population is affected by its ___________, ___________ and migration.
- 4. The important attributes of population composition are ___________, age structure and ___________.
- 5. In India, almost half of the population resides in five states of India, i.e., Uttar Pradesh, ___________, ___________, ___________ and Madhya Pradesh.
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 True or False for the following statements.
- 1. The total population of the world has crossed 10 billion marks in the year 2011.
Answer: Sharing of chores reduces the burden.
- 2. The sex-ratio of India in 2011 was 943.
Answer: The older family member pass on the family traditions to the younger generation.
- 3. The density of population is the number of persons per square kilometre of an area.
Answer: There is more interaction between parents and children in nuclear families.
- 4. The natural growth rate of population is the difference between the birth rate and the death rate.
Answer: A surname is a family name.
- 5. Population becomes human capital when there is investment made in industries, agriculture and means of transport.
Answer: A surname is a family name.
D. Answer the following questions in brief.
- 1. What is meant by the growth rate of population?
Answer: The (main) factors that determine the shape of a cell are location and function.
- 2. What are the three important attributes of population composition?
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. What makes the human beings the most valuable resource?
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. Which regions of the world have high concentration of population and why?
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. Highlight the characteristics of the sparsely population regions of the world.
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. Explain relief and climate as factors affecting the distribution of population.
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. How do minerals and industries affect the distribution of population? Explain.
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 literacy rate? Why is it considered an important indicator in population composition?
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. Define sex-ratio. What are the reasons for the declining sex-ratio in India?
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.
- 5. Which states of India have high density of population and why? Suggest ways and means to check it.
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