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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الٹرا وایلیٹ کرنوں سے زمین کے تحفظ کے لئے اوزون پرت _____ میں موجود ہے؟
Answer: Stratosphere
Explanation The ozone layer is located in the stratosphere , about 10 to 30 miles above Earth's surface. It protects the Earth by absorbing most of the Sun's harmful ultraviolet (UV) radiation.
Answer: Decrease with the increase in atmospheric temperature
Explanation As the temperature rises, the air absorbs more water molecules and reduces relative humidity. As the temperature drops, the relative humidity rises. As the temperature approaches the dew point, the relative humidity increases.
Answer: Decrease
Explanation Answer: A The proportion in the sea is decreasing . Seawater is denser than river water, so ships suffer more damage.
ہوا کی قوت / رفتار کو ماپنے کا آلہ کون سا ہے؟
Answer: Anemometer
Explanation An anemometer is an instrument that measures wind speed. This type of anemometer has a spinning wheel. Additional Information: A hygrometer is an instrument used to measure humidity A salinometer is used to measure the salinity A bolometer is used to measure the power of incident electromagnetic radiation A barometer is used to measure air pressure in certain environment .
پانی کے مالیکیولز کی زیادہ ارتکاز والے علاقے سے کم ارتکاز والے خطے میں نیم پارمیبل جھلی کے ذریعے حرکت کرنے کے عمل کو کیا کہا جاتا ہے؟
Answer: Osmosis
Explanation Osmosis is the movement of water molecules through a semipermeable membrane from an area of higher water concentration to lower concentration. It is a vital process in biological systems for maintaining cell balance .
وہ عوامل جو کسی نظام میں جانداروں کی تعداد اور اقسام کا تعین کرتے ہیں، انہیں کیا کہتے ہیں؟
Answer: Limiting Factors
Explanation Limiting factors are environmental conditions that restrict the growth, abundance, or distribution of organisms . They determine which species can survive and how many individuals of each species can exist in an ecosystem. Limiting factors can be abiotic (non-living) like sunlight, water, or temperature . They can also be biotic (living) like competition, predation, or disease . Last verified on 15-03-2026
عالمی گرمی بنیادی طور پر کس وجہ سے ہوتی ہے؟
Answer: Greenhouse gas emissions
Explanation Cause : Primarily due to excess greenhouse gases like CO₂, CH₄, and N₂O from human activities. Effects : Rising temperatures, melting glaciers, extreme weather, and sea-level rise . Last verified on 08-02-2026
Answer: Fast – moving electrons
Explanation A beta particle, also called beta ray or beta radiation (symbol β), is a high-energy, high-speed electrons emitted by the radioactive decay of an atomic nucleus during the process of b eta deca y.
دنیا میں آلودگی کا سب سے بڑا ذریعہ کیا ہے
Answer: Sewage and garbage
Explanation sewage and garbage = 80% of the total pollution (in the world) Source: United Nation Environment Programme
ایندھن کے نامکمل دہن سے کون سی گیس خارج ہوتی ہے؟
Answer: Carbon Monoxide
Explanation Carbon monoxide (CO) is a colorless , odorless, and highly toxic gas that is emitted by the incomplete combustion of fossil fuels, such as gasoline, natural gas, and wood.
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