Chapter 4 Array Science 8th Class Punjab MCQ Tests
8th Class Science Chapter 4 MCQ Tests
Chapter 4 of 8th Class Science has 15 questions. If you take an online MCQ test, the system will randomly choose the questions. If you want to take the quiz by chapter then click the start test button.
Total Questions: 15
Total Marks: 15
Time: 15 Mins
Total Questions: 15
Total Marks: 15
Time: 15 Mins
15Min : 00 Sec Remaining
Question # 1
How does organic material in the buried solid waste will decompose?
Question # 2
What is deforestation?
Question # 3
Why burning waste is not an acceptable practice of solid waste management?
Question # 4
Clean rain water has a pH value between 5 to 6, which makes it slightly _____.
Question # 5
Which process improves efficiency of solid waste management?
Question # 6
A nontoxic or minimally toxic gas, which reduces or displaces the normal oxygen concentration in breathing air, is known as _____.
Question # 7
Carbon monoxide is _____ than air.
Question # 8
Carbon monoxide is a pollutant because it _____.
Question # 9
Eco-friendly products help preserve the environment by significantly reducing the _______ .
Question # 10
Acid Rain is caused by emissions of:
Question # 11
Which of the following are effected because of deforestation?
Question # 12
Which of the following is NOT a greenhouse gas?
Question # 13
Following are the ways of saving our surrounding except:
Question # 14
Which one is asphyxiating pollution?
Question # 15
Which layer of the atmosphere contains greenhouse gases?
Total Questions
123456789101112131415
Question # 1
How does organic material in the buried solid waste will decompose?
Question # 2
What is deforestation?
Question # 3
Why burning waste is not an acceptable practice of solid waste management?
Question # 4
Clean rain water has a pH value between 5 to 6, which makes it slightly _____.
Question # 5
Which process improves efficiency of solid waste management?
Question # 6
A nontoxic or minimally toxic gas, which reduces or displaces the normal oxygen concentration in breathing air, is known as _____.
Question # 7
Carbon monoxide is _____ than air.
Question # 8
Carbon monoxide is a pollutant because it _____.
Question # 9
Eco-friendly products help preserve the environment by significantly reducing the _______ .
Question # 10
Acid Rain is caused by emissions of:
Question # 11
Which of the following are effected because of deforestation?
Question # 12
Which of the following is NOT a greenhouse gas?
Question # 13
Following are the ways of saving our surrounding except:
Question # 14
Which one is asphyxiating pollution?
Question # 15
Which layer of the atmosphere contains greenhouse gases?
Total Questions
123456789101112131415
Science MCQ Test by Topics
- +4.0 Introduction to Chapter 4
- +4.1 Air Pollutants and Their Sources
- +4.1.1 Properties of Air Pollutants and Their Effects on Human Organ System
- +4.2 Effects of Human Activities on Environment
- +4.2.1 Greenhouse Effect
- +4.2.2 Ozone Depletion
- +4.2.3 Global Warming
- +4.2.4 Acid Rain
- +4.2.5 Deforestation
- +4.2.6 Lack of Natural Resources
- +4.3 Conservation of Resources
- +4.4 Saving the Earth
- +4.4.1 Solid Waste Management
- +4.4.2 Environmental campaigns
- +4.4.3 Responsibility for All
Science
8th Class Punjab MCQ Tests
8th Class Online Classes 2026
Updated on: 21-05-2026
8th Class Online Preparation
8th Class 2026 Online
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