Atmosphere MCQs - Everyday Science Practice | PakExamPoint
Practise Atmosphere MCQs in Everyday Science. Attempt multiple-choice questions, check answers and revise related subtopics.
Atmosphere MCQs and revision practice
Study Atmosphere through multiple-choice questions in Everyday Science. This subtopic contains 291 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
Use these Atmosphere MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.
B. Trapping of Solar energy due to atmospheric carbon dioxide
C. Prevention of ultraviolet rays
D. Pollution
Check answer and explanation
Answer: Trapping of Solar energy due to atmospheric carbon dioxide
Explanation IMPORTANT QUESTIONS AND INFORMATION RELATED TO "GREEN HOUSE EFFECT" Green House Effect means the Trapping of Solar energy due to atmospheric carbon dioxide The greenhouse effect is a good thing . It warms the planet to its comfortable average of 57 degrees Fahrenheit (13.9 degrees Celsius) The greenhouse effect keeps life on earth, well, livable. The Green House Effect is caused by an excess of Carbon dioxide The greenhouse effect causes Global warming Methane gas is 80 times potent than CO2 in Green House Effect ND2-03-2023
جنگلات کو مستقل طور پر تباہ کرنے کے لیے زمین کو دوسرے استعمال کے لیے مہیا کرنا ____ کہلاتا ہے؟
A. Deforestation
B. Reforestation
C. Afforestation
D. Desertification
Check answer and explanation
Answer: Deforestation
Explanation Deforestation is the permanent destruction of forests to make the land available for other uses. Such as agriculture, urbanization, and logging.
قابلِ تجدید توانائی کے ذرائع کو غیر قابلِ تجدید ذرائع سے کون سی خصوصیت ممتاز کرتی ہے؟
A. Fossil origin
B. Natural replenishment
C. None of these
D. Limited supply
Check answer and explanation
Answer: Natural replenishment
Explanation Renewable energy sources are naturally replenished over time. They do not run out quickly and can be used repeatedly . It is environment -friendly and reduces pollution . In contrast, non-renewable sources have limited supply and take millions of years to form. Non-renewable sources like coal and oil are finite and exhaustible. Last verified on 06-05-2026
C. It helps in the growth of the plants by absorbing a large proportion of the sun's ultraviolet radiations
D. It gives oxygen on dissociation
Check answer and explanation
Answer: It helps in the growth of the plants by absorbing a large proportion of the sun's ultraviolet radiations
Explanation 1. Blocks harmful UV rays – Absorbs most of the Sun’s ultraviolet (UV-B & UV-C) radiation. 2. Protects living organisms – Prevents skin cancer, cataracts, and immune system damage in humans. 3. Aids plant life – Reduces UV damage to crops and marine phytoplankton. 4. Maintains environmental balance – Protects ecosystems by limiting UV penetration. 5. Acts as Earth’s natural sunscreen – Critical for sustaining life on the planet.
Explanation IMPORTANT QUESTIONS AND INFORMATION RELATED TO "GREEN HOUSE EFFECT" Green House Effect means the Trapping of Solar energy due to atmospheric carbon dioxide The greenhouse effect is a good thing . It warms the planet to its comfortable average of 57 degrees Fahrenheit (13.9 degrees Celsius) The greenhouse effect keeps life on earth, well, livable. The Green House Effect is caused by an excess of Carbon dioxide The greenhouse effect causes Global warming Methane gas is 80 times potent than CO2 in Green House Effect ND2-03-2023 ND25-2-2023
مندرجہ ذیل میں سے کون سا بڑے شہروں میں رہائش کی سہولیات کی کمی کا سبب بنتا ہے؟
A. Construction of luxury apartments
B. Influx of people from rural areas
C. Increase in agriculture
D. None of these
Check answer and explanation
Answer: Influx of people from rural areas
Explanation The migration of people from rural to urban areas increases the demand for housing, often outstripping supply. This rapid urbanization leads to overcrowding and a shortage of affordable housing in big cities.
ایسی زمین جہاں بارش زیادہ ہوتی ہے یعنی 250 سے 450 ملی میٹر سالانہ؟
A. Forest
B. Tundra
C. Grassland
D. Desert
Check answer and explanation
Answer: Forest
Explanation A land with high rainfall , typically between 250 to 450 mm annually, is a forest. Forests are areas with high vegetation density, and the abundant rainfall supports the growth of a diverse range of plant and tree species.
Explanation The Exosphere is the outermost layer of Earth's atmosphere. It extends from about 500 km to 10,000 km above Earth. This layer gradually transitions into space and contains very few air molecules.
Explanation Marine water is water that contains a high amount of salt, typically above 30% salinity. This includes oceans, seas, and other saltwater bodies.
Explanation The Sun produces energy through nuclear fusion in its core. In fusion, hydrogen nuclei combine to form helium, releasing huge energy. This energy radiates as sunligh t, heat, and solar radiation. Fusion is different from fission, which splits heavy nuclei. Solar energy powers life on Earth and can be harnessed for electricity.
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