The Invisible Living World Beyond Our Naked Eye

What is the overall moral of "The Invisible Living World: Beyond Our Naked Eye"?

1. Microorganisms are an essential part of life. Some are beneficial, some are harmful, and understanding them helps us stay healthy, protect the environment, and improve our quality of life.
2. All microorganisms are harmful.
3. Microorganisms have no importance.
4. Science cannot study invisible organisms.

Why should stagnant water be removed from surroundings?

1. It prevents mosquito breeding and reduces disease spread.
2. It improves mosquito growth.
3. It increases pollution intentionally.
4. It has no effect on health.

Which environment supports the rapid growth of many microorganisms?

1. Warm and moist conditions
2. Dry and freezing conditions
3. Bright sunlight only
4. Vacuum

Why are vaccines important?

1. They help the body develop immunity against diseases.
2. They cause every disease.
3. They replace healthy food.
4. They eliminate the need for hygiene.

What is the role of microorganisms in making medicines?

1. They help produce antibiotics and vaccines.
2. They destroy all medicines.
3. They reduce scientific research.
4. They have no medical use.

Which of the following helps prevent microbial diseases?

1. Washing hands regularly
2. Drinking dirty water
3. Leaving food uncovered
4. Ignoring personal hygiene

Why should food be stored properly?

1. To prevent the growth of harmful microorganisms.
2. To make food heavier.
3. To increase its colour only.
4. To reduce nutrition.

Which microorganism is commonly used to make bread?

1. Yeast
2. Algae
3. Amoeba
4. Virus

Which disease is caused by bacteria?

1. Cholera
2. Malaria
3. Dengue
4. Amoebiasis

Why are decomposers important in nature?

1. They recycle nutrients by breaking down dead organisms.
2. They produce plastic waste.
3. They destroy all plants.
4. They prevent plant growth.

Which process is used by microorganisms to make curd?

1. Fermentation
2. Photosynthesis
3. Respiration
4. Digestion

Which microorganism causes malaria?

1. Bacterium
2. Protozoan (Plasmodium)
3. Fungus
4. Alga

Which of the following is a beneficial microorganism?

1. Lactobacillus
2. Malaria parasite
3. Disease-causing virus
4. Cholera bacterium

Which instrument is commonly used to observe microorganisms?

1. Telescope
2. Microscope
3. Binoculars
4. Magnifying glass

What are microorganisms?

1. Very large living organisms
2. Tiny living organisms that can be seen only with the help of a microscope
3. Non-living particles
4. Plants that grow underwater