The atmosphere of Earth is the layer of gases, known collectively as air, retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere. The atmosphere of Earth creates pressure, absorbs most meteoroids and ultraviolet solar radiation, warms the surface through heat retention (greenhouse effect), allowing life and liquid water to exist on the Earth's surface, and reduces temperature extremes between day and night (the diurnal temperature variation).
As of 2023, by mole fraction (i.e., by number of molecules), dry air contains 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases.
Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere. Air composition, temperature, and atmospheric pressure vary with altitude. Within the atmosphere, air suitable for use in photosynthesis by terrestrial plants and breathing of terrestrial animals is found only in Earth's troposphere.Earth's early atmosphere consisted of gases in the solar nebula, primarily hydrogen. The atmosphere changed significantly over time, affected by many factors such as volcanism, life, and weathering. Recently, human activity has also contributed to atmospheric changes, such as global warming, ozone depletion and acid deposition.
The atmosphere has a mass of about 5.15×1018 kg, three quarters of which is within about 11 km (6.8 mi; 36,000 ft) of the surface. The atmosphere becomes thinner with increasing altitude, with no definite boundary between the atmosphere and outer space. The Kármán line, at 100 km (62 mi) or 1.57% of Earth's radius, is often used as the border between the atmosphere and outer space. Atmospheric effects become noticeable during atmospheric reentry of spacecraft at an altitude of around 120 km (75 mi). Several layers can be distinguished in the atmosphere, based on characteristics such as temperature and composition.
The study of Earth's atmosphere and its processes is called atmospheric science (aerology), and includes multiple subfields, such as climatology and atmospheric physics. Early pioneers in the field include Léon Teisserenc de Bort and Richard Assmann. The study of historic atmosphere is called paleoclimatology.
Mga BOSS, no budget pa kasi ako sa AC. kaya ask lang muna sana ako ano magandang AIRCOOLER? kahit mga 3k to 4k sana, and kung wala man pasok sa budget ko, okay kaya ang electricfan with mist? salamat po sa sasagot.
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Kung ano-anong os na po nilagay ko para malagyan ng driver yan kaso error parin, currently ang nakalagay jan is 32bit Win10, since 32bit lng tinatanggap ng bios nya, wala pong Lan port, kaya wala pong way para mai-online ang driver… sana po may makatulong… salamat po.
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Ok ba ang Air Fryer
na curious ako dito mas ok ba to kumpara sa oven
sa mga naka gamit nito ano un feedbck / observation nyo dito
kamusta electric consumption nya?
mas tipid ba to sa gas stove kung typical na lutuin lng
Abangan na mamayang 12am
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Pano to mga idol yung kaibigan ko pinalitan nya ng battery yung ipad nya pero hindi nya na off yunh ipad at connected sa battery tas nilagay nya yung lcd nya na connected tas no display kasi pag kakaalam ko dapat naka disconnect yung battery bago eh salpak dahil masisira yung diode or filter sa...
The Breezers - Love in Acoustic 2 : The Songs of Air Supply
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Pa help naman paano mag format ng nakalimutan ang PW. Kung pwede sana hindi ma delete yun photos and video. Kung hindi kaya kahit simpleng format nalang. Salamat. Pa lipat nalang po post kung mali napuntahan.
Mga boss ask ko lang nakakaapekto ba sa consumption ng gas yung walang air filter. Kasi walang air filter yung mio sporty ko at sobrang matakaw sa gas yung 4 liters ko around 80 km lang natakbo. At bukod sa air filter may ibang cause pa ba na nagiging matakaw sa gas yung mio sporty 2021 ko?
Sino naka airfiber dito? Samin kc lagi nalang walang net sa gabi ilang beses na 9pm or 10pm mawawalan na tapos 7am ng umaga nabalik ... Ano kaya problema nun ,hindi ko naman alam pano settings neto . hindi naman maulan at hindi den mahangin para mawala palagi ng ganun.
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Price cap on rice only 'temporary', NEDA says after stakeholders air concern
Job Manahan, ABS-CBN News
MANILA — The National Economic Development Authority (NEDA) on Sunday sought to allay stakeholders' concerns on the rice price ceiling, which it said was only temporary.
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help naman po sa coding and pag build ng arduino project po namin na air quality monitoring system Co2 and sulfur dioxide po ang focus namin. thank you po
Link
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May iPad Air 4 po kasi ako binigay kaso ayaw gumana ng charger sa PC. Nakapag charge naman kaso walang indicator na charging at kusa lang nadagdagan ng percentage life ang battery.
May paraan po ba na ma bypass? Thank you po
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may ibang way ba para ma downgrade ang 14.6 ipad air 2 sa 13.3? baka may nakakaalam mag babayad ako kung kailangan . ayaw kasi gumana ng battledock ko para lang di masayang thanks sa makakasagot
Sound travels four times faster in water than in air
Sound is a wave of alternating compression and expansion, so the speed of it depends on how fast it bounces back from each compression; the less compressible the medium it's traveling through, the faster it bounces back. Water is about 800...
Air pollution now kills more people than smökîng
A new study led by the Max Planck Institute for Chemistry which appeared in the European Heart Journal found that air pollution is now responsible for almost nine million premature deaths every year.
The study's co-author professor Thomas Münzel...
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Professor Scent Fresh Bamboo / Car Air Freshener / Hanging Diffuser - 10mL
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