Carbon dioxideis a greenhouse gas; it can act like a blanket, trapping heat in the atmosphere, so Earth stays warmer than it would be otherwise. A rapid increase in CO2 concentrations could have caused major changes in Earth's climate, which might have brought about the mass extinction. Meth...
根据It is like the glass of a greenhouse, letting sunlight in and keeping heat from getting out,可知,大气层就像温室的玻璃,让阳光进来,防止热量散发出去,所以空格处填The glass of a greenhouse。故答案为The glass of a greenhouse。 【2】 根据As a result of the greenhouse effect, the Earth's te...
What is the main gas in the earth's atmosphere? A. Oxygen. B. Nitrogen. C. Carbon dioxide. D. Hydrogen. 相关知识点: 试题来源: 解析 B。本题考查对地球大气主要成分的认识。氮气是地球大气中主要的气体。选项 A 氧气含量次之,选项 C 二氧化碳含量较少,选项 D 氢气在大气中含量极少。
Earth's Atmosphere: Earth's atmosphere is usually split into five primary layers based on the temperature profile in each: the troposphere at the bottom, then stratosphere, mesosphere, thermosphere, and exosphere. Other specialized layers also exist within these, such as the ozone layer, ionosphere...
Earth has an atmosphere. The atmosphere protects us from harmful rays. What is the atmosphere made of? A. Water vapor B. Gases C. Soil D. Rocks 相关知识点: 试题来源: 解析 B。解析:地球有大气层,大气层保护我们免受有害射线的伤害。大气层是由气体组成的。选项 A 水蒸气只是大气层的一部分...
doi:10.1029/2010eo460005Spencer R. WeartJohn Wiley & Sons, Ltd
The earth’s atmosphere is like a blanket of gases around the earth. It is only a thin layer but it helps to maintain the temperature of the earth, keeping us warm. It also offers a layer of protection from the intensity of the sun.A. earth’s atmosphere and a blanket B. earth’...
What does “meteorologists” refer to___. A. people who study the earth’s atmosphere and its changes B. people who are in charge of weather forecast C. people who broadcast weather on TV D. people who study the E. arth’ s rocks the history of its development 相关...
We do not know whether complex life is ubiquitous or scarce when it comes to the broader Universe. But we are, with our modern knowledge of science, able to reconstruct a number of important points about how life came to be the way it is today on Earth. Here’s what we know....
earth is surrounded by a blanket of air, which we call the atmosphere. the atmosphere is the mixture of gases and other materials that surround the earth in a thin, mostly transparent(透明的)shell. it is held in place by the earth's gravity. it reaches over 560 kilometers (348 miles)...