Chapter 3
Natural Resources Vegetation and Wildlife
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 term is used for the plant community which grows without human interference?
Answer: vacuole
- 2. Which vegetation grows in hot and humid regions of the world?
Answer: vacuole
- 3. The most common trees of Tropical Deciduous Forests are-
Answer: vacuole
- 4. Trees of Mediterranean Forests are have-
Answer: vacuole
- 5. The area under forests is depleting due to-
Answer: vacuole
B. Fill in the blanks.
- 1. The assemblage of plant species in an environment is known as ___________.
- 2. ___________ and ___________ are two important factors for the plant growth.
- 3. Humus helps to maintain ___________ of the soil.
- 4. Hardwood trees have broad leaves to permit ___________ of surplus moisture.
- 5. Teak is the commercially important tree of the ___________ forests.
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. The forests which do not shed all their leaves at the same time.
Answer: Sharing of chores reduces the burden.
- 2. In this forest, summers are dry and moderate rain falls in winter.
Answer: The older family member pass on the family traditions to the younger generation.
- 3. Conical shaped trees are common in these forests.
Answer: There is more interaction between parents and children in nuclear families.
- 4. The act or process of creating new forests by planting saplings.
Answer: A surname is a family name.
- 5. The Temperate Softwood Forests found in the southern slopes of Himalayas.
Answer: A surname is a family name.
D. Answer the following questions in brief.
- 1. Why are the Tropical Rain Forests known as evergreen forests?
Answer: The (main) factors that determine the shape of a cell are location and function.
- 2. Why do the Tropical Deciduous Forests shed their leaves during the summer season? Name two such trees.
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. Write any three characteristic features of the trees found in the Mediterranean Forests.
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. Distinguish between a national park and a wildlife sanctuary.
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. Suggest any three important measures for the protection of forests.
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. What is meant by natural vegetation? How do temperature and rainfall affect its distribution? Explain with examples.
- 2. Highlight any five points of distinction between Tropical Deciduous Forests and Coniferous Forests.
- 3. ‘Forests are essential for maintaining an ecological balance.’ Justify the statement with suitable arguments.
- 4. Explain the importance of wildlife.
- 5. How are human beings responsible for the depletion of vegetation and wildlife?
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