CURIOUS SCIENCE – AI Test Paper (Set 15)

. What is generally considered waste?

• • Any material that can be reused immediately.
• • Something that has been used once and is then discarded.
• • Organic material that always decomposes naturally without human intervention.
• • Materials that are valuable for industrial recycling processes only.

. Which of the following is an example of non-biodegradable waste?

• • Vegetable peels
• • Leftover food
• • Polythene bags
• • Paper

. What is the process of converting biodegradable waste into manure by burying it in a pit called?

• • Landfilling
• • Incineration
• • Composting
• • Recycling

. What is a significant benefit of using compost made from waste?

• • It completely eliminates the need for any kind of waste disposal.
• • It significantly improves the fertility of the soil.
• • It can be directly used as fuel for combustion.
• • It is primarily used for constructing new buildings.

. Which gas is helpful in the process of combustion?

• • Nitrogen
• • Hydrogen
• • Carbon Dioxide
• • Oxygen

. What is the general term for the act of discarding something unwanted?

• • Reuse
• • Waste
• • Recycle
• • Composting

. Which of the following is an example of non-biodegradable waste?

• • Vegetable peels
• • Paper
• • Polythene bags
• • Leftover food

. What is the process of converting organic waste into manure through decomposition called?

• • Incineration
• • Landfilling
• • Composting
• • Recycling

. Which waste management method involves processing used materials into new products?

• • Burning
• • Landfilling
• • Burying
• • Recycling

. Crop residue is an example of which type of waste?

• • Domestic waste
• • Industrial waste
• • Agricultural waste
• • Hazardous waste

. Define decomposition in the context of waste management.

. List the '3 R's' of waste management and briefly explain their purpose.

. Define 'waste' in the context of garbage management.

. What distinguishes biodegradable waste from non-biodegradable waste?

. Explain the difference between biodegradable and non-biodegradable waste. Provide two examples for each type.

. Describe the process of composting and explain two benefits it offers.

. Discuss the environmental problems caused by polythene bags and suggest ways to reduce their usage.

. Why is waste segregation important for effective waste management?

. What is rainwater harvesting? Briefly describe one method of rainwater harvesting.

. Explain the 'Reduce, Reuse, Recycle' principle for waste management and provide an example for each.

. Describe the process of composting and its environmental benefits.

. What is a landfill, and what are some challenges associated with managing waste in landfills?

. Why should we reduce the use of polythene bags, and what are some sustainable alternatives?

. Explain the process of rainwater harvesting and its importance for water conservation.

. Polythene is a biodegradable material that decomposes quickly in the environment.

. Composting helps in improving the fertility of the soil.

. Burning waste is an environmentally sound method for waste disposal as it eliminates all waste quickly.

. The '3 R's' in waste management primarily stand for Reduce, Reuse, and Repair.

. Plants and animals are components of a habitat.

. The process of discarding something unwanted is called 'waste'.

. Vegetable peels and leftover food are examples of non-biodegradable waste.

. Composting is a method used to produce manure from organic waste.

. Recycling involves disposing of waste materials in landfills.

. Polythene bags are easily biodegradable and do not harm the environment.

. The process of waste materials rotting and mixing with the soil due to microorganisms is called __________.

. Waste materials like fruit peels, vegetable peels, and leftover food are examples of __________ waste.

. __________ are large areas used for dumping and burying garbage.

. The process of converting waste materials into new products is known as _________.

. The standard unit of length is __________.

. The waste that rots and mixes with the soil is called ___________ waste.

. ___________ are large areas specifically designed for dumping garbage.

. The process of making manure from organic waste through decomposition is known as __________.

. Recycling helps to ___________ the amount of waste sent to landfills and conserves resources.

. To reduce plastic pollution, one should prefer using ___________ bags for shopping instead of polythene bags.