百度试题 结果1 题目What is the main gas in the air that we breathe? A. Oxygen B. Nitrogen C. Carbon dioxide D. Hydrogen 相关知识点: 试题来源: 解析 A。解析:我们呼吸的空气中主要的气体是氧气,氧气支持生命活动。反馈 收藏
It is a mixture of different gases. Because we can't see thegases in the air, it is difficult to think about them.2.阅读理解. What is air? Air is not just one gas. It is a mixture of different gases. Because we can't see the gases in the air, it is difficult to think about...
由原文第一段的Air is not jsut one gas. It is a mixture of different gases可知正确答案.故答案为C. (4).【答案】 A 【解析】 由原文第三段的If 1000 dots can represent the air, then 776 of them are nitrogen, 210 are oxygen, 11 are argon可知正确答案.故答案为A.反馈...
What is the coldest air temperature ever recorded on the Earth Where was this low temperature recorded The coldest recorded temperature on Earth was --91℃. which (51) in Antarctica (南极洲) in 1983. We encounter an interesting situation when we discuss temperatures in ...
What Is the Coolest Gas in the Universe?What is the coldest air temperature ever recorded on the Earth? Where was this low temperature recorded? The coldest recorded temperature on Earth was - 91℃, which occurred in Antarctica (南极洲) in 1983.We encounter an interesting situation when we ...
In summary: I did get the ones about the earth's age and the nucleus.In summary, the Christian Science Monitor quiz is a fun way to test your scientific literacy. Most questions are about things you learned in school, but a few are more difficult. If you're not familiar with some ...
What Is the Coolest Gas in the Universe?What is the coldest air temperature ever recorded on the Earth? Where was this low temperature recorded? The coldest recorded temperature on Earth was -91℃ which occurred in Antarctica in 1983.We encounter an interesting situation when we discuss temperatu...
What is the coldest air temperature ever recorded on the Earth? Where was this low temperature recorded? The coldest recorded temperature on Earth was -91℃ which occurred in Antarctica in 1983. We encounter an interesting situation when we discuss temperatures in ___ Temperatures in Earth orbit...
What is the coldest air temperature ever recorded on the Earth? Where was this low temperature recorded? The coldest recorded temperature on Earth was -91℃ which ___ in Antarctica in 1983. We encounter an interesting situation when we discuss temperatures in space Temperatures in Earth orbit...
What Is the Coolest Gas in the Universe What is the coldest air temperature ever recorded on the Earth Where was this low temperature recorded The coldest recorded temperature on Earth was -91℃ which (51) in Antarctica in 1983. We encounter an interesting situation when we discuss temperatures...