CBSE Class 6 General Knowledge

Unit 4: Science & Technology

Lesson: Plants and Animals

📘 Study Module: Plants and Animals

1. Introduction

Plants and animals are living organisms found on Earth. They play an important role in maintaining balance in nature. Plants provide food and oxygen, while animals depend on plants and other animals for survival.

2. Plants

Plants are living organisms that can make their own food using sunlight, water, and carbon dioxide. This process is called photosynthesis. Plants are the primary producers in nature.

3. Types of Plants

Plants are classified into different types such as:

• Herbs
• Shrubs
• Trees
• Climbers
• Creepers

Each type has distinct features based on size and structure.

4. Animals

Animals are living organisms that cannot make their own food. They depend on plants or other animals for food. Animals show movement and respond quickly to their surroundings.

5. Types of Animals

Animals are grouped in various ways, such as:

• Domestic and wild animals
• Herbivores, carnivores, and omnivores
• Vertebrates and invertebrates

This classification helps in studying animals easily.

6. Interdependence of Plants and Animals

Plants and animals depend on each other for food, oxygen, and shelter. Together, they maintain balance in the ecosystem.

📝 Questions and Answers

A. Short Answer Questions

(One sentence each)

1. What are plants?
   Answer: Plants are living organisms that make their own food.
2. What are animals?
   Answer: Animals are living organisms that depend on others for food.
3. Which process helps plants make food?
   Answer: Photosynthesis helps plants make food.
4. Name any one type of plant.
   Answer: Trees are one type of plant.
5. What do plants provide to animals?
   Answer: Plants provide food and oxygen to animals.
6. What are herbivores?
   Answer: Herbivores are animals that eat plants.
7. Name one carnivorous animal.
   Answer: A lion is a carnivorous animal.
8. What are domestic animals?
   Answer: Domestic animals are animals tamed by humans.
9. What are wild animals?
   Answer: Wild animals live in forests and natural habitats.
10. Why are plants important?
    Answer: Plants are important because they provide food and oxygen.

B. Long Answer Questions

(3–5 sentences each)

11. Explain the importance of plants.
    Answer: Plants are very important for life on Earth. They produce food through photosynthesis. Plants provide oxygen needed for breathing. They also provide shelter and raw materials.
12. Describe the process of photosynthesis.
    Answer: Photosynthesis is the process by which plants make food. They use sunlight, water, and carbon dioxide. Chlorophyll in leaves helps in this process. Oxygen is released as a by-product.
13. Explain different types of plants.
    Answer: Herbs are small plants with soft stems. Shrubs are medium-sized plants with woody stems. Trees are tall plants with strong trunks. Climbers and creepers have weak stems.
14. What are animals and why are they important?
    Answer: Animals are living beings that depend on others for food. They help maintain balance in nature. Some animals help in farming and transport. Others help in pollination and seed dispersal.
15. Describe herbivores, carnivores, and omnivores.
    Answer: Herbivores eat only plants. Carnivores eat other animals. Omnivores eat both plants and animals. This classification is based on food habits.
16. Write a note on domestic animals.
    Answer: Domestic animals live with humans. They provide milk, meat, wool, and help in farming. Examples include cows, dogs, and goats. They are useful to humans.
17. Write a short note on wild animals.
    Answer: Wild animals live in forests and jungles. They are not tamed by humans. Examples include lions and elephants. They play an important role in ecosystems.
18. How do plants and animals depend on each other?
    Answer: Animals depend on plants for food and oxygen. Plants depend on animals for carbon dioxide. Some animals help in pollination. Thus, both depend on each other.
19. What are vertebrates and invertebrates?
    Answer: Vertebrates are animals with a backbone. Invertebrates are animals without a backbone. Fish and birds are vertebrates. Insects are invertebrates.
20. Why should plants and animals be protected?
    Answer: Plants and animals are important for ecological balance. Destruction of forests affects wildlife. Conservation helps protect biodiversity. It ensures survival of future generations.

🧠 Multiple Choice Questions (MCQs)

(With Answers and Detailed Explanations)

1. Which of the following can make its own food?
   a) Animal
   b) Plant
   c) Bird
   d) Insect
   Answer: b) Plant
   Explanation: Plants make food through photosynthesis.
2. Photosynthesis requires ______.
   a) oxygen
   b) sunlight
   c) soil only
   d) animals
   Answer: b) sunlight
   Explanation: Sunlight is essential for photosynthesis.
3. Which gas is released during photosynthesis?
   a) Carbon dioxide
   b) Nitrogen
   c) Oxygen
   d) Hydrogen
   Answer: c) Oxygen
   Explanation: Oxygen is released as a by-product.
4. Which animal eats only plants?
   a) Lion
   b) Tiger
   c) Goat
   d) Dog
   Answer: c) Goat
   Explanation: Goats are herbivores.
5. Which animal eats both plants and animals?
   a) Cow
   b) Lion
   c) Human
   d) Deer
   Answer: c) Human
   Explanation: Humans are omnivores.
6. Which is a domestic animal?
   a) Lion
   b) Elephant
   c) Cow
   d) Tiger
   Answer: c) Cow
   Explanation: Cows are tamed animals.
7. Which is a wild animal?
   a) Dog
   b) Cat
   c) Horse
   d) Lion
   Answer: d) Lion
   Explanation: Lions live in forests.
8. Plants are called ______.
   a) consumers
   b) producers
   c) decomposers
   d) predators
   Answer: b) producers
   Explanation: Plants produce their own food.
9. Which plant has a strong woody trunk?
   a) Herb
   b) Shrub
   c) Tree
   d) Creeper
   Answer: c) Tree
   Explanation: Trees have strong trunks.
10. Animals depend on plants for ______.
    a) shelter only
    b) food and oxygen
    c) water only
    d) soil
    Answer: b) food and oxygen
    Explanation: Plants provide both.
11. Which of these is a herbivore?
    a) Lion
    b) Tiger
    c) Cow
    d) Cat
    Answer: c) Cow
    Explanation: Cows eat plants.
12. Which animal helps in pollination?
    a) Snake
    b) Bee
    c) Lion
    d) Fish
    Answer: b) Bee
    Explanation: Bees help in pollination.
13. Which of these is an invertebrate?
    a) Dog
    b) Frog
    c) Fish
    d) Insect
    Answer: d) Insect
    Explanation: Insects do not have a backbone.
14. Which type of plant has a weak stem?
    a) Tree
    b) Shrub
    c) Herb
    d) Climber
    Answer: d) Climber
    Explanation: Climbers have weak stems.
15. Animals breathe in ______.
    a) carbon dioxide
    b) nitrogen
    c) oxygen
    d) hydrogen
    Answer: c) oxygen
    Explanation: Oxygen is needed for respiration.
16. Which group eats flesh of other animals?
    a) Herbivores
    b) Omnivores
    c) Carnivores
    d) Producers
    Answer: c) Carnivores
    Explanation: Carnivores eat meat.
17. Which helps maintain balance in nature?
    a) Plants only
    b) Animals only
    c) Plants and animals
    d) Soil only
    Answer: c) Plants and animals
    Explanation: Both are interdependent.
18. Which is NOT a plant type?
    a) Herb
    b) Shrub
    c) Mammal
    d) Tree
    Answer: c) Mammal
    Explanation: Mammals are animals.
19. Why are animals important?
    a) For decoration
    b) For balance in nature
    c) For pollution
    d) For noise
    Answer: b) For balance in nature
    Explanation: Animals maintain ecological balance.
20. Why should forests be protected?
    a) For buildings
    b) For roads
    c) For plants and animals
    d) For factories
    Answer: c) For plants and animals
    Explanation: Forests are natural habitats.

✅ End of Lesson

Prepared strictly in accordance with the NCERT syllabus and CBSE Class 6 examination standards.