The surface temperature of Venus higher than it is on Mercury is B The greenhouse effect is operating on Venus.
Why does Mercury have no atmosphere?
There are predominant reasons. First, Mercury is small and does not have an awful lot gravity so it is tough to maintain onto an surroundings. Second, Mercury is near the Sun so any surroundings receives blasted away via way of means of stuff being blown off the Sun.
Although Venus isn't the planet closest to the sun, its dense surroundings traps warmth in a runaway model of the greenhouse impact that warms Earth. As a result, temperatures on Venus attain 880 levels Fahrenheit (471 levels Celsius), that's extra than warm sufficient to soften lead.
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