Class 5 SST Question Answers - Pollution and Conservation of Environment

Q1: What is pollution, and how does it affect the environment?
Ans: Pollution is when harmful things get mixed into the air, water, or soil, making them dirty and causing problems for living things. Pollution can harm people, animals, and plants, and it's mainly caused by human activities.

Q2: What are the major types of pollution mentioned in the article?
Ans: The major types of pollution mentioned are air pollution, water pollution, soil pollution, noise pollution, and light pollution.

Q3: How does air pollution happen, and what are its effects?
Ans: Air pollution happens when harmful gases mix with the air, mostly because of things like factories, vehicles, and garbage burning. It can make people sick with breathing problems and harm plants and animals.

Q4: What causes water pollution, and why is it dangerous?
Ans: Water pollution can be caused by both natural things like storms and human activities like releasing waste into rivers. It's dangerous because polluted water can make people sick with diseases like Jaundice and harm plants and animals too.

Q5: Explain what soil pollution is and how it happens.
Ans: Soil pollution is when the soil becomes dirty and can't support life because of things like dumping waste onto the land or using too many pesticides and fertilizers. It hurts the soil, the organisms living in it, and plant growth.

Q6: What is noise pollution, and why is it a problem for the environment and our health?
Ans: Noise pollution is too much loud and unwanted noise around us, like from cars, machines, and music. It can harm our hearing, cause stress, and disturb our sleep. It also affects animals and the environment.

Q7: Explain light pollution and how it can affect the environment.
Ans: Light pollution happens when there's too much artificial light from things like streetlights and buildings. It can harm the environment by disrupting ecosystems and making it hard to see stars in the sky.

Q8: Why is it important to keep our environment clean?
Ans: Keeping the environment clean is important because it helps us stay healthy, and it's good for all living things. A clean environment means fewer germs and diseases and a better place to live.

Q9: What are the two types of waste mentioned in the article, and how are they different?
Ans: There are two types of waste: biodegradable and non-biodegradable. Biodegradable waste can break down naturally and is good for the soil. Non-biodegradable waste doesn't break down easily and can harm the environment.

Q10: Explain the Three R's and why they are important for the environment.
Ans: The Three R's are Recycling, Reuse, and Reduce. Recycling means using things again, Reuse means finding new ways to use things instead of throwing them away, and Reduce means making less waste. They are important because they help us protect the environment and use resources wisely.