Q1. Just above the earth surface is:
The troposphere is the lowest layer of the atmosphere, directly above the Earth's surface.
Class 10 Chemistry Chapter 14: Environmental Chemistry I: The Atmosphere MCQs With Explanations
Practice Class 10 Chemistry Chapter 14: Environmental Chemistry I: The Atmosphere MCQs with explanations for Pakistani board exams. Includes solved objective questions, answer checking, chapter revision guidance and next chapter suggestions.
11 MCQs
Chapter 14: Environmental Chemistry I: The Atmosphere Objective Preparation
Use this page for direct chapter practice, answer checking and explanation review. It is available through the clean URL shown in the browser, so students can bookmark and share this exact chapter.
11Total MCQs
11With explanations
8Topics represented
Topics found: Atmospheric Layers, Air Pollution, Atmosphere, Greenhouse Gases, Global Warming, Ozone Layer, Air Pollutants, Acid Rain
Live Online MCQs Test
Create a custom, interactive chapter-wise MCQs quiz for quick revision and test practice.
Start Quiz
Environmental Chemistry I: The Atmosphere MCQs With Explanations
Q2. Iron and steel structure are damaged by?
Sulfur dioxide causes acid rain, which corrodes iron and steel structures through chemical reactions.
Q3. Depending upon temperature Variation, atmosphere is divided into how many regions?
The atmosphere is divided into four main layers based on temperature variation: troposphere, stratosphere, mesosphere, and thermosphere.
Q4. About 99% atmosphere's mass lies within?
About 99% of the atmosphere's mass lies within the first 11 kilometers, primarily in the troposphere and lower stratosphere.
Q5. Infrared radiation emitted by the Earth are absorbed by:
Carbon dioxide and water vapor are the main greenhouse gases that absorb infrared radiation emitted by the Earth's surface.
Q6. Global warming causes rising of the sea level. The cause of global warming is?
Carbon dioxide is the primary greenhouse gas responsible for global warming due to its abundance and long atmospheric lifetime.
Q7. Which gas protects the Earth's surface from ultraviolet radiation?
Ozone in the stratosphere absorbs harmful UV radiation, protecting life on Earth.
Q8. Which one following is not an air pollutant?
Carbon dioxide is a greenhouse gas but is not classified as a conventional air pollutant since it is naturally occurring and essential for life; the others are directly harmful pollutants.
Q9. Acid rain effects the aquatic life by clogging fish gills because of:
Aluminum, leached from soils by acid rain, becomes soluble and toxic in acidic waters, accumulating in fish gills and impairing respiration.
Q10. Normally rain water is weakly acid because of?
CO₂ dissolves in rainwater to form carbonic acid, making normal rainwater weakly acidic with a pH around 5.6.
Q11. Which of the following is NOT a direct consequence of the greenhouse effect?
The greenhouse effect causes warming, which leads to rising sea levels and altered ecosystems, but it does not directly increase food chain length. This option is biologically misleading and unrelated to greenhouse physics.
Chapter 14: Environmental Chemistry I: The Atmosphere Revision Guide
Complete the MCQs first, then review every incorrect answer against the textbook heading where that concept appears. For biology and other science subjects, pay attention to terminology, diagrams, sequence of processes, examples and differences between similar structures or functions.
This chapter page keeps the exact class, subject, chapter, question count, answer checking, explanations and follow-up chapters together, so students can revise from one focused URL instead of searching through the full book again.
Class 10 Chemistry MCQ Preparation: Environmental Chemistry I: The Atmosphere
This page supports Matric Part 2 practice in Chemistry. At this stage, the main purpose is strengthening final-year matric concepts and preparing for cumulative school and board assessments. The questions available here should be used with the current textbook and the instructions issued by the learner's school or examination board.
What Chemistry MCQs can test
In Chemistry, objective questions commonly draw on chemical symbols, atomic structure, periodic trends, bonding, equations, reaction conditions, laboratory observations and calculations. A useful answer is based on the exact wording and concept, not simply on recognising a familiar option. For this subject, learners should connect each chemical fact with a particle-level explanation and check symbols, charges, valencies and equation balance carefully.
Environmental Chemistry I: The Atmosphere: focused MCQ revision
This chapter should be reviewed through its main definitions, examples, diagrams, comparisons and links with earlier Chemistry concepts.
Write a one-sentence reason for each corrected answer and note the textbook heading where the concept is explained.
Common mistakes for Class 10 learners
In this subject, frequent errors include confusing related trends, using an incorrect chemical symbol, missing a reaction condition or treating similar compounds as identical. Review textbook exceptions, diagrams, units and similar-looking statements because these often cause avoidable objective-question errors. When the page marks an answer as incorrect, the next step should be to identify the mistaken idea and verify it, rather than memorising the displayed answer letter.
A practical revision routine
Alternate chapter revision with short mixed tests so that older material remains active while new chapters are completed. Before attempting the MCQs, review definitions, equations, periodic relationships, structures, reaction conditions, examples and exceptions stated in the textbook. Complete a manageable set without notes, check the result, and divide errors into missing knowledge, misunderstood concepts and careless reading. Revise the appropriate section before repeating the chapter.
How to review Environmental Chemistry I: The Atmosphere after the quiz
List the questions you missed from Environmental Chemistry I: The Atmosphere and write the textbook heading connected with each one. Explain the correct idea in your own words, then return later and answer a fresh set. This gives the chapter page a clear purpose: finding specific weaknesses in Chemistry rather than only collecting a score.
Accuracy and responsible use
Explanations are provided where they exist in the question bank, but educational databases can contain incomplete or mistaken material. Confirm disputed answers with an authoritative textbook or teacher. Ahmad Learning Hub provides a practice resource and does not claim that a question will appear in an examination or that every available item represents an official board question.