Which of the following is true relating Earth and Venus?

Question

BlackTom AI · Accepted Answer

To evaluate the statements, let’s consider what we know about Earth and Venus and their atmospheres.
Option 1: 'The greenhouse effect warms both Earth and Venus, but Venus much more so.' This is accurate. Both planets experience greenhouse warming, but Venus has a dense CO2-rich atmosphere and thick clouds that trap far more infrared radiation, leading to extremely high surface temperatures. This statement correctly captures the comparative strength of the greenhouse effect on the two planets.
Option 2: 'Venus suffered a runaway greenhouse effect which caused its atmosphere to completely dissipate into space.' This is incorrect. Venus did not lose its atmosphere; in fact it retains a very thick atmosphere dominated by CO2. A runaway greenhouse effect on Venus contributed to its extreme surface temperatures, but it did not result in the atmosphere dissipating into space.
Option 3: 'Earth's greenhouse effect is stronger than on Venus, resulting in moderate temperatures.' This is misleading. Earth's greenhouse effect is real and contributes to a moderate, life-supporting climate, but it is far weaker than Venus’s, which is why Venus is much hotter despite being at a similar solar distance.
Option 4: 'Venus is much smaller than Earth so it lost its atmosphere due to its weak gravity.' This is factually incorrect. Venus is similar in size to Earth and has a strong enough gravity to retain a thick atmosphere; its current atmosphere is not due to atmospheric loss from weak gravity but to its atmospheric composition and runaway greenhouse conditions.

Which of the following is true relating Earth and Venus?单项选择题

类似问题

What is a major cause of the difference between the Earth's atmosphere (and its effects on climate) and those of Venus and Mars?

Why is the Earth's surface warmer than would be expected just from the amount of energy it receives from the Sun?

Temperature in the atmosphere generally:

The warming of a car in the sun is an excellent analogy for the greenhouse effect of our atmosphere. Complete the analogy with the words and phrases then place the sentences in order. BlackTom Analysis

What is keeping the Earth warmer than predicted based on its distance from the sun?

Which of the following parameters is used to determine the concentration of protein in a spectrophotometer?

What are the units of absorbance?

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单