Practise Atmosphere MCQs in Everyday Science. Attempt multiple-choice questions, check answers and revise related subtopics.
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.
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Answer: Thinner
Explanation As we go higher in the atmosphere, atmospheric pressure drops and the air goes on getting thinner . That’s why mountain climbers sometimes need bottled oxygen to breathe. It becomes difficult to breath as the air is thinner .
Answer: 100 mm
Explanation In a cloudburst, rainfall specifically exceeds 100 millimetres (about 4 inches) per hour over a localized area.
Answer: Magnesium
Explanation Manganese or zinc or magnesium deficiencies within the plant also will cause chlorosis
سورج سے خارج ہونے والی سب سے زیادہ نقصان دہ تابکاری کس کو کہا جاتا ہے؟
Answer: Ultra Violet
Explanation Ultra Violet rays : most harmful and are almost completely absorbed by our atmosphere.
سورج سے توانائی کا اخراج کس کا نتیجہ ہے؟
Answer: Nuclear Fusion
Explanation Solar energy is created by nuclear fusion t hat takes place in the sun . Fusion occurs when protons of hydrogen atoms violently collide in the sun's core and fuse to create a helium atom. This process, known as a PP (proton-proton) chain reaction ** ND17-1-2023
مندرجہ ذیل میں سے کون سا بنیادی آلودگی نہیں ہے؟
Answer: SO₄
Explanation Primary pollutants are directly emitted from sources like vehicles and industries (e.g., NO₂, CO, SO₃ ). SO₄ (Sulfate) is a secondary pollutant, formed through chemical reactions in the atmosphere.
مندرجہ ذیل میں سے کون سی گیس گلوبل وارمنگ میں معاون ہے؟
Answer: All of these
Explanation CFCs, carbon dioxide (CO₂), and methane (CH₄) are all greenhouse gases. They trap heat in the atmosphere , leading to global warming.
زندہ چیزوں کے خاص ماحول کے مطابق زندگی گزارنے کی جگہ _____ ہے؟
Answer: Habitat
Explanation A habitat is the natural environment in which a living thing resides. Including all the living and non-living factors that affect its survival and growth.
گرین ہاؤس اثر ______ کے طور پر بیان کیا گیا ہے؟
Answer: The trapping of heat in the Earth's atmosphere
Explanation The greenhouse effect occurs when gases like CO₂ and methane trap heat from the sun in the Earth's atmosphere . This trapped heat keeps the planet warm enough to support life but contributes to global warming when intensified.
توہین آمیز تہہ سے ڈھکی ہوئی آر سی سی چھت کی سلیبوں میں توسیعی جوائنٹ کا زیادہ سے زیادہ فاصلہ ہے
Answer: 20 to 30 m
Explanation
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