SOLAR SYSTEM

Detailed explanation-1: -Earth takes 365 days to revolve around the Sun, whereas, Mars takes 687 days to complete one revolution around the Sun.

Detailed explanation-2: -Earth revolves around the sun in 365 days, 5 hours, 59 minutes and 16 seconds. The time a planet takes to revolve around the sun is called a year.

Detailed explanation-3: -Earth has an orbital period of 365 days and its mean distance from the Sun is 1.495x108 km. The planet Pluto’s mean distance from the Sun is 5.896x109 km. Using Kepler’s third law, calculate Pluto’s orbital period in Earth days.

Detailed explanation-4: -The Earth completes one orbital revolution around the Sun in 365 days 5 hrs. The Earth has an atmosphere composed of 78% nitrogen, 21% oxygen, and traces of other gases including carbon dioxide and water vapor. The atmosphere provides the medium for the important water cycle and life cycles that occur on the planet.

Detailed explanation-5: -The Gregorian calendar, the most widely used across the globe, measures a year to be 365 days following the Earth’s orbit around the Sun. However, the Earth’s orbit takes 365.24 days to complete its solar orbit and an extra day every four years is added to keep calendar seasons synchronised with solar seasons.