The atmosphere protects the earth. What is the atmosphere made of? A. Gas and dust B. Water and fire C. Earth and moon D. Stars and gas 相关知识点: 试题来源: 解析 A。本题考查对大气层组成的了解,大气层由气体和尘埃组成。B 选项水和火不对;C 选项地球和月亮不对;D 选项星星和气体不对...
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...
came from billions of cyanobacteria on the planet's ocean. This oxygen is an essential component in respiration. Until today, various lifeforms coexist on this planet named Earth. Its atmosphere has continued to play an important role in protecting the p...
Which layer of the Earth is the coolest in temperature? Which layer of the atmosphere has the lowest temperature? What is the lowest layer of the Earth's atmosphere? What is the highest layer of the atmosphere? What are the layers of earth atmosphere?
atmosphere effectIt is frequently stated in textbooks and scholarly articles that the surface temperature of Earth is 33°C warmer than it would be without the atmosphere and that this difference is due to the greenhouse effect. This Forum shows that the atmosphere effect leads to warming of ...
结果1 题目What percentage of the Earth's atmosphere does nitrogen make up by volume? A. 21% B. 50% C. 78% D. 99% 相关知识点: 试题来源: 解析 C。原因:It makes up about 78% of the Earth's atmosphere by volume.。反馈 收藏 ...
A. Only the amount of rainfall. B. Atmospheric pressure, temperature and humidity. C. The number of clouds in the sky. D. The speed of the E. arth's rotation. 相关知识点: 试题来源: 解析 B。解析:科学家通过发射气象气球主要收集大气压力、温度和湿度等数据。A选项气象气球不仅仅收集降雨量。
3.Researchers and many scientists are concerned that the earth's climate and atmosphere are becoming warmer.What scientists do agree on is that the temperature will continue to increase if measures are not taken to reduce pollution and emissions from c
.The atmosphere(大气)is a bit like the glass of a greenhouse.It lets sunlight pass through easily but stops some of the heat getting out.So when the rays of sunlight heat the Earth,it warms up.The Earth gives out heat but not all of it gets into outer space.Som...
The goal of green tech is to protect the environment, repair damage done to the environment in the past, and conserve the Earth's natural resources. Green tech has also become a burgeoning industry that has attracted enormous amounts of investment capital. ...