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Question (11)

QN0032745

Which of the following is an example of biodegradable waste?

(A) Plastic spoon
(B) Glass bottle
(C) Eggshells
(D) Aluminium can

Correct Answer: C

Explanation:

Eggshells decompose naturally and can be composted.

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Question (12)

QN0032746

A gardener adds 12 kg of compost to each flower bed. If there are 6 flower beds, how much compost is needed in all?

(A) 62 kg
(B) 68 kg
(C) 72 kg
(D) 78 kg

Correct Answer: C

Explanation:

12 × 6 = 72 kg.

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Question (13)

QN0032747

Which material takes the longest time to decompose?

(A) Dry leaves
(B) Vegetable peels
(C) Plastic bottle
(D) Fruit peels

Correct Answer: C

Explanation:

Plastic is non-biodegradable and takes a very long time to decompose.

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Question (14)

QN0032748

A compost pit receives 9 kg of kitchen waste every day. How much waste is added in 8 days?

(A) 63 kg
(B) 72 kg
(C) 81 kg
(D) 90 kg

Correct Answer: B

Explanation:

9 × 8 = 72 kg.

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Question (15)

QN0032749

Which waste should be separated before making compost?

(A) Biodegradable and non-biodegradable waste
(B) Wet clothes and dry clothes
(C) Small stones and sand
(D) Books and notebooks

Correct Answer: A

Explanation:

Only biodegradable waste should be used for composting.

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Question (16)

QN0032750

A school collected 45 kg of biodegradable waste and 28 kg of non-biodegradable waste. How much waste was collected in total?

(A) 63 kg
(B) 68 kg
(C) 73 kg
(D) 83 kg

Correct Answer: C

Explanation:

45 + 28 = 73 kg.

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Question (17)

QN0032751

Which of the following is the best use of compost?

(A) Making plastic bags
(B) Improving soil fertility for plants
(C) Storing drinking water
(D) Cleaning glass windows

Correct Answer: B

Explanation:

Compost enriches the soil with nutrients and improves plant growth.

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Question (18)

QN0032752

A compost pit contains 36 kg of waste. After decomposition, 12 kg of compost is removed. How much compost remains in the pit?

(A) 22 kg
(B) 24 kg
(C) 26 kg
(D) 28 kg

Correct Answer: B

Explanation:

36 − 12 = 24 kg.

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Question (19)

QN0032753

A family prepares 5 kg of compost every month. How much compost will they prepare in 9 months?

(A) 40 kg
(B) 45 kg
(C) 50 kg
(D) 55 kg

Correct Answer: B

Explanation:

5 × 9 = 45 kg.

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Question (20)

QN0032754

Which action helps in proper waste management at home?

(A) Mixing all types of waste together
(B) Separating biodegradable and non-biodegradable waste before disposal
(C) Throwing kitchen waste on the road
(D) Burning all household waste

Correct Answer: B

Explanation:

Separating waste makes composting and recycling easier.

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Question (11)

Which of the following is an example of biodegradable waste?

Explanation:

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Question (12)

A gardener adds 12 kg of compost to each flower bed. If there are 6 flower beds, how much compost is needed in all?

Explanation:

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Question (13)

Which material takes the longest time to decompose?

Explanation:

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Question (14)

A compost pit receives 9 kg of kitchen waste every day. How much waste is added in 8 days?

Explanation:

Link:

Question (15)

Which waste should be separated before making compost?

Explanation:

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Question (16)

A school collected 45 kg of biodegradable waste and 28 kg of non-biodegradable waste. How much waste was collected in total?

Explanation:

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Question (17)

Which of the following is the best use of compost?

Explanation:

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Question (18)

A compost pit contains 36 kg of waste. After decomposition, 12 kg of compost is removed. How much compost remains in the pit?

Explanation:

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Question (19)

A family prepares 5 kg of compost every month. How much compost will they prepare in 9 months?

Explanation:

Link:

Question (20)

Which action helps in proper waste management at home?

Explanation:

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