The Atmosphere
Gbogbo ọrọ náà
The thin shell of gas wrapped around our planet does an extraordinary amount of work. It gives us the oxygen we breathe, the carbon dioxide that plants need, the weather that waters our crops, and a screen that filters out the Sun's most harmful rays. Yet clean dry air is mostly just two gases, and the part that traps heat is a tiny fraction of the whole. Understanding what the atmosphere is made of, and how it is layered, is the starting point for every topic that follows on climate, pollution and human impact.
In this lesson you will learn the names and order of the four main layers, where the ozone layer sits and what it does, and the percentage make-up of clean air. You will then meet the natural greenhouse effect, the gentle warming that keeps the planet habitable, and see clearly why it is a completely different process from the thinning of the ozone layer. These foundations make the later topics on climate change, acid rain and ozone depletion far easier to master.
Ebumnobi
- 4.1.1 Describe the structure and composition of the atmosphere, limited to: (a) the names and relative order of the layers: troposphere, stratosphere, mesosphere and thermosphere (b) the location of the ozone layer in the lower stratosphere (c) percentage composition of clean air: 78% nitrogen, 21% oxygen, carbon dioxide, argon and water vapour.
- 4.1.2 Define climate as the weather conditions in a location based on the weather over many years.
- 4.1.3 Describe the natural greenhouse effect, limited to: (a) solar radiation passes through the Earth’s atmosphere (b) some solar radiation is absorbed by the land and oceans, heating the Earth (c) some solar radiation is reflected back into space (d) some solar radiation is absorbed and re-emitted back to the Earth’s surface by greenhouse gases and clouds (e) this natural process warms the Earth enough to support life.
Nkuzi Olu
Gee ntị na nkuzi a na ngwa
Maapụ uche
E seela isiokwu a ka ị hụ otu echiche si ejikọta.
Mepee maapụ uche na ngwa
Kaadị ncheta
Omume ncheta ngwa ngwa n'ihe a na-anwale n'isiokwu a.
Mee omume kaadị ndị a na ngwa
Akwụkwọ Ọmụmụ
Ndetu Nkuzi Zuru Ezu di na Ngwa Green Bridge
Nweta ngwa Green Bridge CBT na ekwenti gi ma o bu kompiuta maka ulo akwukwo IGCSE zuru oke: akwukwo ule ndi gara aga, usoro nyocha, eserese uche, kaadi omumu na nkuzi olu.
Nnyocha Ọmụmụ
Ekele diri gi maka imecha ihe karịrị na The Atmosphere. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- Which gas makes up about 78% of clean dry air? A. Oxygen B. Carbon dioxide C. Nitrogen D. Argon Answer: C
- In which layer of the atmosphere does weather occur? A. Stratosphere B. Troposphere C. Mesosphere D. Thermosphere Answer: B
- The ozone layer is found in the lower part of the: A. Troposphere B. Mesosphere C. Stratosphere D. Thermosphere Answer: C
- Approximately what percentage of clean dry air is oxygen? A. 1% B. 21% C. 50% D. 78% Answer: B
- Which statement best describes the natural greenhouse effect? A. Ozone blocks incoming ultraviolet radiation B. Greenhouse gases absorb outgoing heat and warm the Earth C. Carbon dioxide reacts with water to form acid rain D. Chlorine destroys ozone in the stratosphere Answer: B
Rue ajuju ndi a n'ime ngwa ahu
Rue ajuju ndi a n'ime ngwa ahu
Akwụkwọ A Na-atụ Aro
Mụtakwuo ihe site na isi mmalite mepere emepe
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Akụkụ akwụkwọ
Climate and the Effects of Global Climate Change
Define global climate change
"Biology: Climate and the Effects of Global Climate Change" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/biology/pages/44-5-climate-and-the-effects-of-global-climate-change. Access for free at https://openstax.org/books/biology/pages/1-introduction
Ndị otu ndị ọzọ bipụtara ha n'okpuru ikike mepere emepe, anyị na-ekele ha dị ka ha si chọọ. Njikọ na-emepe saịtị ha.
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara The Atmosphere? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
Budata Ngwa Ahụ Na Google Playstore
Ihe nile ichoro iji nwee ihe ịga nke ọma na JAMB, WAEC & NECO.
