منابع مشابه
effect of oral presentation on development of l2 learners grammar
this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...
15 صفحه اولENSO and greenhouse warming
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It was billed as a major disaster film about a serious subject. The movie The Day after Tomorrow describes the effects of global warming at a breathtaking pace. Global warming triggers the collapse of the Antarctic ice sheet beneath a team of polar scientists. In chain-reaction-like consequences, the collapse sends a 100-foot tsunami across Manhattan before the city is frozen in ice. Super-torn...
متن کاملSulfur - Related Greenhouse Warming on Early Mars
Introduction: A building body of evidence from recent Mars exploration missions suggests that sulfur chemistry may have played a prominent role in the planet’s early evolution. Although the Martian atmosphere contains virtually no sulfur species at present, both soils and outcrop observed by landed missions have high sulfate abundances [1,2]. The OMEGA hyperspectral imager has now also identifi...
متن کاملTransient reducing greenhouse warming on early Mars
The evidence for abundant liquid water on early Mars despite 3 the faint young Sun is a long-standing problem in planetary research. Here 4 we present new ab initio spectroscopic and line-by-line climate calculations 5 of the warming potential of reduced atmospheres on early Mars. We show 6 that the strength of both CO2-H2 and CO2-CH4 collision-induced absorp7 tion (CIA) has previously been sig...
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ژورنال
عنوان ژورنال: Physics Today
سال: 2018
ISSN: 0031-9228,1945-0699
DOI: 10.1063/pt.3.3883