Modern research has tied the late-Triassicmass extinctionto some strange but devastating changes in Earth's atmosphere that took place at about the same time. In this post, we're going over some of the potential causes of the atmospheric conditions and exactly what the atmosphere was like durin...
What was the atmosphere composed of during the Cretaceous Period? What layer of the atmosphere is included in the biosphere? What is the lowest layer of the Earth's atmosphere? What was the atmosphere like in the Triassic period? What were the earliest life forms on Earth like?
题目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...
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 ...
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。
P3. What happens to the meteorolds when they pas through the Earth's atmosphere? A. They cool down. B. They pick up speed. C. They are stopped there. D. They become less destructive.B4. Choose the best word to fil in the blank in the last paragraph: Lastly, the Earth is a(n)...
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...
doi:10.1029/2010eo460005Spencer R. WeartJohn Wiley & Sons, Ltd
This book says that our world is in danger.(A) It is vital that we do something to save the earth.First of all, what are the threats to our environment? The authors ask us to‘imagine the earth inside a kind of greenhouse with the atmosphere around it acting like the glass, letting...