大氣層中的“同溫層”指的是（）。
A、對流層
B、平流層
C、中間層
D、外太空
相關(guān)熱點： 同溫層 對流層 平流層 中間層
相關(guān)問題推薦
有關(guān)平流層特征及衛(wèi)生學(xué)意義哪一項論述是錯誤的？（ ?。?/p>
A、平流層在對流層之上
B、平流層又分兩個亞層：同溫層和臭氧層
C、臭氧層能吸收短波紫外線，保護人體不受短波紫外線傷害
D、同溫層在臭氧層下面
E、各種氣象現(xiàn)象都是
A.太空旅游業(yè)的蓬勃發(fā)展會改變?nèi)虼髿庋h(huán)及臭氧的分布B.大氣同溫層中的污染物質(zhì)煤煙的含量會隨著私人火箭發(fā)射次數(shù)的增加而顯著升高C.每年火箭發(fā)射次數(shù)超過1000次，會使地球溫度升高1攝氏度D.同溫層中的污染物會留存3年到10年，會對地球溫度造成持久影響
2.The writer states that fungi and bacteria（ ）.
3.The passage says that the biosphere（ ）.
4.According to the text, the balance of nature is（ ）.
5.The writer says that ecology is primarily concerned with the（ ）.
'>The biosphere is the name biologists give to the sort of skin on the surface of this planet that is inhabitable by living organisms. Most land creatures occupy only the interface between the atmosphere and the land; birds extend their range for a few hundred feet into the atmosphere: burrowing invertebrates （無脊椎動物） such as earthworms may reach a few yards into the soil but rarely penetrate farther unless, it has been recently disturbed by men. Fish cover a wider range, from just beneath the surface of the sea to those depths of greater than a mile inhabited by specialized creatures. Fungi （真菌） and bacteria are plentiful in the atmosphere to a height of about half a mile, blown there by winds from the lower air. Balloon exploration of the stratosphere （同溫層） as long ago as 1936 indicated that moulds and bacteria could be found at heights of several miles, recently the USA’s National Aeronautics and Space Administration has detected them, in decreasing numbers, at heights up to eighteen miles. They are pretty sparse at such levels, about one for every two thousand cubic feet, compared with 50 to 100 per cubic foot at two to six miles (the usual altitude of jet aircraft), and they are almost certainly in an inactive state. Marine bacteria have been detected at the bottom of the deep Pacific trench, sometimes as deep as seven miles; they are certainly not inactive. Living microbes have also been obtained on land from cores of rock drilled (while prospecting for oil) at depths of as much as 1,200 feet. Thus we can say, disregarding the exploits of astronauts, that the biosphere has a maximum thickness of about twenty-five miles. Active living processes occur only within a compass of about seven miles, in the sea, on land and in the lower atmosphere, but the majority of living creatures live within a zone of a hundred feet or so. If this planet were sealed down to the size of an orange, the biosphere, at its extreme width, would occupy the thickness of the orange-colored skin, excluding the pith.In this tiny zone of our planet takes place the multitude of chemical and biological activities that we call life. The way in which living creatures interact with each other, depend on each other or compete with each other, has fascinated thinkers since the beginning of recorded history. Living things exist in a fine balance which is often taken for granted, from a practical point of view, things could not be otherwise. Yet it is a source of continual amazement to scientists because of its intricacy and delicacy. The balance of nature is obvious most often when it is disturbed. Yet even here it can seem remarkable how quickly it readjusts itself to a new balance after a disturbance. The science of ecology...the study of the interaction of organisms with their environment...has grown up to deal with the minutiae of the balance of nature.
1.According to the passage, the “biosphere” is the layer on the earth's surface（） .
2.The writer states that fungi and bacteria（ ）.
3.The passage says that the biosphere（ ）.
4.According to the text, the balance of nature is（ ）.
5.The writer says that ecology is primarily concerned with the（ ）.
A.where the atmosphere meets the sea B.in which birds, fish and animals would die C.in which plant and animal life can exist D.in which earthworms and other invertebrates can live問題2： A.are only found below the normal altitude of jet planes B.have been found well at the normal altitude of jet planes C.are not found below the surface of the earth D.are mainly found below the surface of the earth問題3： A.extends only 1,200 feet below the earth's surface B.is about seven miles in width C.is as much as twenty-five miles in thickness D.is a zone only about one hundred feet wide問題4： A.something which we should not take for g波音B-52亞音速遠程戰(zhàn)略轟炸機的綽號是“同溫層堡壘”。
A、對
B、錯
在大氣層內(nèi)，大氣密度（）
A、在同溫層內(nèi)隨高度增加保持不變。
B、隨高度增加而增加。
C、隨高度增加而減小。
D、隨高度增加可能增加，也可能減小。