Q. Which is the nearest planet to the sun(1) Venus(2) Jupiter(3) Mercury(4) Mars
(3) Mercury: In our solar system, Mercury is the closest and smallest planet to the sun. Since it is the smallest planet in the solar system, it orbits the sun faster than all the other planets, which is why it was named after the swift-footed messenger god of the Romans.
There is a huge metallic core within Mercury, which covers approximately 75% of the planet’s diameter, or about 2,200 to 2,400 miles (3,600 to 3,800 kilometers) in diameter. Mercury is the second densest planet in the solar system after Earth. Mercury’s outer shell is approximately 300 to 400 miles (500 to 600 km) thick. For years, scientists have been baffled by the combination of its massive core with its composition, which includes some volatile elements.
In general, a planet travels faster the closer it gets to the Sun. Mercury’s year is the shortest of all the planets in our solar system, which is 88 days since it crosses the Sun’s path the quickest and has the shortest distance to travel.
In part due to the planet’s proximity to the sun, the surface of Mercury can reach 840 degrees Fahrenheit (450 degrees Celsius). In spite of this, as this world does not have much of an atmosphere to trap any heat, the temperature can fall to minus 275 degrees Fahrenheit (minus 170 degrees Celsius), the largest swing in the solar system.