GK
SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Mars is farther from the Sun than Earth
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Mars has a thinner atmosphere than Earth
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Mars has a greater axial tilt than Earth
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Mars has a longer period of rotation than Earth
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Detailed explanation-1: -The Earth zips around the Sun at about 67, 000 miles per hour, making a full revolution in about 365 days – one year on Earth. Mars is a little slower, and farther from the sun, so a full circuit takes 687 Earth days – or one Mars year. That longer year means longer seasons too.
Detailed explanation-2: -Orbit and Rotation This is another similarity with Earth, which has an axial tilt of 23.4 degrees. Like Earth, Mars has distinct seasons, but they last longer than seasons here on Earth since Mars takes longer to orbit the Sun (because it’s farther away).
Detailed explanation-3: -A planet’s day is the time it takes the planet to rotate or spin once on its axis. Mars rotates at almost the same speed as the Earth so a day on Mars is about as long as a day on Earth. A day on Mars is 24.62 hours long while a day on Earth is 23.934 hours long.
Detailed explanation-4: -Mars’ orbital eccentricity is considerably larger, which causes its seasons to vary significantly in length. A sol, or Martian day, is not that different from an Earth day: less than an hour longer. However, a Mars year is almost twice as long as an Earth year.