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.
وسیع پیمانے پر جنگلات کی کٹائی کہاں دیکھی جا سکتی ہے؟
A. Sodium
B. Amazon forest
C. None of these
D. Aluminum
Check answer and explanation
Answer: Amazon forest
Explanation Location: Amazon Rainforest, South America Area Affected: ~ 17% of forest lost in last 50 years Causes: Agriculture, cattle ranching, logging, urbanization Impact: Loss of biodiversity, carbon emissions, climate change Additional information : Amazon forest is called the “ lungs of the Earth” Last verified on 16-01-2026
Explanation The ozone layer lies in the stratosphere, approximately 15-40 kilometers (10-25 miles) above the Earth's surface . The s tratospheric ozone layer is Earth's “ sunscreen ” protecting living things from too much ultraviolet radiation from the sun. Oxygen layer in the atmosphere Ozone protects us from the harmful ultraviolet radiation of the sun. Ozone formula : O3 The ozone layer is depleting : Air pollution ND17-7-2023
اس کے ماحول میں زمین کے آس پاس اونچی ، زمین سے بارہ سے پچاس کلومیٹر کے فاصلے پر ، ایک پرت ہے جس کو ______ کہتے ہیں؟
A. None of these
B. Troposphere layer
C. Mesosphere layer
D. Ozone layer
Check answer and explanation
Answer: Ozone layer
Explanation The ozone layer lies about 12 to 50 km above Earth’s surface, mainly in the stratosphere . It protects life by absorbing the Sun’s harmful ultraviolet (UV) rays.
Explanation Major forms of pollution include air pollution, light pollution, noise pollution, plastic pollution, soil contamination, radioactive contamination, thermal pollution,and water pollution.
مندرجہ ذیل میں سے کون سے اوزون کو ختم کرنے والے مادے ہیں؟
A. Chlorofluorocarbons (CFCs)
B. Acetylene
C. Carbon Monoxide
D. Carbon dioxide
Check answer and explanation
Answer: Acetylene
Explanation Chlorofluorocarbons (CFCs) and other halogenated ozone-depleting substances (ODS) are mainly responsible for man-made chemical ozone depletion. ozone is made up of O3 اوزون فضا می ں آکسیجن کی تہہ اوزون ہمیں سورج کی نقصان دہ الٹرا وائلنٹ شعاعوں سے بچاتا ہے۔ اوزون فارمولا: O3 ** ND31-12-2022
آب و ہوا کی تبدیلی کا پاکستان پر نمایاں اثر پڑتا ہے کیونکہ ______؟
A. It improves infrastructure and communications
B. None of these
C. It increases agricultural productivity and exports
D. It causes extreme weather events like floods and droughts
Check answer and explanation
Answer: It causes extreme weather events like floods and droughts
Explanation Climate change leads to more frequent and intense floods, droughts, heatwaves, and glacial melting in Pakistan. These events severely impact agriculture, water resources, and human health . It posing a major threat to the country’s economy and livelihoods .
Explanation The most popular renewable energy sources currently are: 1. Solar energy 2. Wind energy 3. Hydro energy 4. Tidal energy 5. Geothermal energy 6. Biomass energy RK12-12-2022
ماحول کو بنانے والے غیر جاندار اجزا کو _____ کہتے ہیں؟
A. Biotic Factors
B. Abiotic Components
C. Biotic Components
D. Abiotic Factors
Check answer and explanation
Answer: Abiotic Components
Explanation Abiotic components refer to the non-living things in an environment, including : Physical elements : light, temperature, water, soil, air Chemical elements : minerals, nutrients, salts Geological elements : rocks, minerals, terrain
A. A dry, barren area with little rainfall and snowfall
B. A cold, treeless and barren area with no water
C. None of these
D. A dense forest with high rainfall and biodiversity
Check answer and explanation
Answer: A dense forest with high rainfall and biodiversity
Explanation Rainforests are characterized by heavy rainfall (usually over 200 cm/year) and thick vegetation. They are rich in biodiversity , housing over half of the world's plant and animal species.
Explanation The loss of water vapor to the atmosphere through stomata is a passive process, meaning that metabolic energy in the form of ATP is not required for water movement. The energy driving transpiration is the difference in energy between the water in the soil and the water in the atmosphere.
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