Chapter 11
Transport in Modern Times
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. Development in science and technology has replaced-
Answer: vacuole
- 2. What is an indicator of the level of development of a country?
Answer: vacuole
- 3. It is the fastest and most comfortable means of transport-
Answer: vacuole
- 4. The length of India’s coastline is-
Answer: vacuole
- 5. Which is the busiest air route in India?
Answer: vacuole
B. Fill in the blanks.
- 1. Efforts are being made to reduce the consumption of petrol and ___________.
- 2. National highways link all ___________ of India.
- 3. ___________ water transport is mainly for trade and tourism.
- 4. Increase in transportation cost is added to the ___________ of an item.
- 5. ___________ roads are constructed along the borders for the movement of army.
- 6. Vehicles cannot run without ___________.
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. State whether True or False:
- 1. Roads have encouraged national unity.
Answer: Sharing of chores reduces the burden.
- 2. The first train covered a distance of 134 kilometres.
Answer: The older family member pass on the family traditions to the younger generation.
- 3. Earlier pipelines were used for gas transportation.
Answer: There is more interaction between parents and children in nuclear families.
- 4. Use public transport system to reduce traffic on roads.
Answer: A surname is a family name.
- 5. Crude oil is supplied by trucks to the oil refineries.
Answer: A surname is a family name.
D. Answer briefly:
- 1. Mention two problems created by increase in road traffic.
Answer: The (main) factors that determine the shape of a cell are location and function.
- 2. What are the advantages of airways?
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. Which is the best mode of transport? 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.
- 4. Name any two renewable sources of energy.
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. List two changes that have improved railways in recent times.
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. List three ways in which a well-developed transport system affects the lives of people.
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. In which four ways are railways better than roadways?
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. Name the items transported by pipeline transportation. Mention two advantages of pipeline transportation.
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. Briefly describe the different types of roads of 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. How can renewable sources of energy help in reducing pressure on petrol and diesel?
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