Assertion (A): The waste we generate daily may be biodegradable or non-biodegradable. Reason (R): The waste generated, if not disposed off properly may cause serious environmental problems.

Our Environment

Managing the Garbage we Produce

Options

(A)Both (A) and (R) are true and (R) is the correct explanation of (A).

(B)Both (A) and (R) are true and (R) is not correct explanation of (A).

(C)(A) is true, but (R) is false.

(D)(A) is false, but (R) is true.

Official Answer

biodegradablenon-biodegradableenvironmental problemsnot the correct explanation

Marking Scheme

11 mark for selecting Option B.

Hint

Check if both statements are individually true. Then ask if the environmental problems caused by improper disposal explain why waste is classified as biodegradable or non-biodegradable.

Quick Oral Answer

Both statements are true, but the reason does not explain the assertion. Waste is classified as biodegradable or non-biodegradable based on whether decomposers can break it down, not because of the environmental problems caused by improper disposal.

Analysis & Explanation

Assertion (A) is true because the waste generated daily can indeed be classified into biodegradable (broken down by biological processes) and non-biodegradable (not broken down by biological processes) substances. Reason (R) is also true because improper disposal of waste leads to serious environmental issues like pollution, soil degradation, and harm to ecosystems. However, the reason why waste is categorized as biodegradable or non-biodegradable is due to the specificity of enzymes and biological decomposers, not because improper disposal causes environmental problems. Thus, (R) is not the correct explanation of (A), making Option B the correct choice.

Common Mistakes

1Students often choose Option A because both statements are true and related to waste, without checking if the Reason actually explains the cause of the Assertion.

Interesting Facts

Plastics persist in the environment for hundreds of years because decomposers lack the specific enzymes required to break their synthetic chemical bonds.

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Frequently Asked Questions

How many marks does this question carry in CBSE Class 10 Science 2024?

This question carries 1 mark in the CBSE Class 10 Science 2024 examination.

Which chapter does this question come from in Science?

This question is from the chapter "Our Environment" in the CBSE Class 10 Science syllabus.

What topic does this question cover in Science?

This question covers the topic "Managing the Garbage we Produce" from CBSE Class 10 Science.

What type of question is this in the CBSE Class 10 Science 2024 paper?

This is a MCQ question from Section A in the CBSE Class 10 Science 2024 paper.