Since this is not the case, average lightning temperatures have been calculated. It is shown that the procedure of calculating lightning temperature by assuming the stroke temperature to be constant yields a temperature which is lower than, but within 10 per cent of, the actual peak lightning ...
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some animals will enter a kind of sleep mode during which they neither eat nor drink. This is most commonly known as hibernation. With the arrival of spring, the temperature rises, small animals are awakened by rolls of springtime t...
What is the main idea of the text? . Hydroxyl radicals clean the atmosphere. . Oxidizing is a natural result of lightning. . Lightning may help address climate change. . Greenhouse gases contribute to rising temperature. 相关知识点: 试题来源: 解析 1. A 2. B 3. B 4. C 【导语】...
According to this theory, lightningcauses thunder sound. The streams of lightning are very hot,much hotter than the surface of the sun.When the high temperature lightening stream hits the sur-rounding air, sudden rise in temperature takes place. It bringsalong an instant expansion of heated air...
B . Frustrated. C . Amazed. D . Ambiguous. (4) What is the main idea of the text? A . Hydroxyl radicals clean the atmosphere. B . Oxidizing is a natural result of lightning. C . Lightning may help address climate change. D . Greenhouse gases contribute to rising temperature.【...
选项A“the build - up of electric charges”(电荷的积累),在大气中电荷的积累是雷电形成的根本原因,积累到一定程度就会产生雷电;选项B“the lack of water vapor”(缺乏水蒸气),水蒸气缺乏不是雷电形成的因素;选项C“the high temperature”(高温),高温不是雷电形成的直接原因;选项D“the low air pressure”...
Some blind people have got their sight back after being struck by lightning. One woman said a psychological test showed her intelligence(智力)had greatly improved, and one man said he could no longer feel cold at all and could go out in temperature below freezing in just a T-shirt! So ...
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