Everything that happens on our planet above the ground is taking place in Earth’s protective envelope called the atmosphere. While more than 6,000 miles thick, the atmosphere is comprised of five distinct layers. Each layer has unique characteristics. In between these layers are boundaries called...
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...
The Earth is surrounded by a layer of gas called the atmosphere. What is one of the important functions of the atmosphere? A. To make the Earth look blue from space. B. To protect the Earth from harmful radiation. C. To make it easier for people to travel by plane. D. To keep ...
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...
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 ...
What is the role of the atmosphere in protecting the Earth? A. Blocks harmful radiation B. Provides oxygen for breathing C. Regulates temperature D. All of the above 相关知识点: 试题来源: 解析 D。大气层可以阻挡有害辐射、提供呼吸所需的氧气以及调节温度。
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。
You hear: "The atmosphere protects the Earth." What does the atmosphere not protect the Earth from? A. Meteorites B. Solar wind C. Earthquakes 相关知识点: 试题来源: 解析 C。解析:大气层保护地球免受陨石和太阳风的伤害。但大气层不能保护地球免受地震的影响。
A warmer planet doesn’t just raise temperatures. From wildfires to flooding to coral bleaching, here are some real-world implications.
Layers of the Atmosphere The Earth’s atmosphere has five main layers and a sixth layer, the ionosphere, that overlaps the mesosphere, thermosphere, and exosphere. The five vertical layers of the atmosphere are: Troposphere Stratosphere Mesosphere ...