Chapter 2
Representation of the Earth
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 a representation of the earth drawn on a flat surface?
Answer: vacuole
- 2. Which one of the following symbols represents a bridge?
Answer: vacuole
- 3. A compass is mainly used to-
Answer: vacuole
- 4. Large scale maps are used for-
Answer: vacuole
- 5. Which type of map represents relief features like mountains, plateaus, plains and deserts?
Answer: vacuole
B. Fill in the blanks.
- 1. A ___________ represents the three-dimensional view of the earth.
- 2. The technique or skill of making maps is called ___________.
- 3. ___________ is a drawing of a small area drawn from one’s observation and memory without directions.
- 4. A ___________ is a device consisting of a magnetic needle, which always points towards north.
- 5. ___________ area are shown by using white colour on maps.
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. Read the statements given below and write an appropriate term for each.
- 1. The most perfect approximation of the earth.
Answer: Sharing of chores reduces the burden.
- 2. The device that helps the mariners to sail in the desired direction.
Answer: The older family member pass on the family traditions to the younger generation.
- 3. The experts of map-making.
Answer: There is more interaction between parents and children in nuclear families.
- 4. Maps showing distribution of rainfall, population, etc.
Answer: A surname is a family name.
- 5. A collection of maps of the world, continents and selected countries in a bound form.
Answer: A surname is a family name.
D. Answer the following questions in brief.
- 1. What are the limitations of a globe?
Answer: The (main) factors that determine the shape of a cell are location and function.
- 2. Mention the advantages of a map.
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 is a thematic map?
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. Name the cardinal points along with intermediate directions.
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. How do conventional symbols help in reading maps?
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. Why is a globe considered a perfect representation of the earth? Give any three reasons.
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 What is a scale? Why is it an important component of a map?
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. Distinguish between a physical map and political map.
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. If you are lost in a jungle, how can a topographic map help you to come out of the jungle?
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. Highlight the significance of a common colour scheme in the maps. Give examples to support our answer.
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.
- 6. Describe the history of map-making.
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