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Important Questions

Environmental Concerns

Telangana Open School (TOSS) · Class 12 · Chemistry

Most important questions from Environmental Concerns for Telangana Open School (TOSS) Class 12 Chemistry board exam 2026. MCQs, short answer, and long answer questions with marks.

44 questions35 flashcards5 concepts

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44 Questions·
multiple choicemultiple correcttrue false

Sample Questions

1multiple choice
1 marks

Which segment of the environment includes minerals, metals, and rocks?

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Lithosphere

Lithosphere is the part of Earth containing minerals, metals, rocks, and soil.

2multiple choice
1 marks

The atmosphere is important because it contains:

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Free oxygen and water vapour

The atmosphere contains free oxygen and water vapour, essential for life.

3multiple choice
1 marks

Pollution refers to the deterioration of natural resources due to:

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Presence of unwanted substances beyond a certain limit

Pollution is the deterioration of natural resources due to unwanted substances exceeding safe limits.

4multiple choice
1 marks

Contamination means:

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Presence of undesirable materials in a medium

Contamination is the mere presence of undesirable materials making a medium unfit for use.

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Frequently Asked Questions

What are the important topics in Environmental Concerns for Telangana Open School (TOSS) Class 12 Chemistry?
Environmental Concerns covers several key topics that are frequently asked in Telangana Open School (TOSS) Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Environmental Concerns — Telangana Open School (TOSS) Class 12 Chemistry?
Understand the core concepts first, then work through the 44 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many important questions are there in Environmental Concerns?
There are 44 practice questions available for Environmental Concerns. These cover multiple question types including MCQs, short answer, and long answer questions.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All 41 chapters — Telangana Open School (TOSS) Class 12 Chemistry Important Questions

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