Explanation

The Earth was formed about 4.5 billion years ago.

Additional information:

• Method Used: Radiometric dating
• Oldest Materials: Meteorites and ancient Earth rocks
• Scientific Consensus: Supported by geology and astronomy

Last verified on 16-01-2026

Explanation

• Venus is the brightest planet in the night sky.
• Due to its thick cloud cover that reflects sunlight strongly.
• It is often called the “Evening Star” or “Morning Star.”

Additional information:

• Distance from Sun: ~108 million km
• Diameter: 12,104 km
• Orbital Period: 225 Earth days
• Atmosphere: Thick CO₂ clouds, very reflective

Last verified on 15-01-2026

Explanation

The troposphere is the lowest layer of the atmosphere

It is where weather occurs and contains about 75% of the atmosphere’s mass.

The principle constituent of the atmosphere of the Earth is called Nitrogen.

Explanation

Jupiter has the shortest day of any planet in our solar system

It completes one rotation in approximately 9 hours and 56 minutes.

It is also the fastest-spinning planet in the solar system.

Explanation

The coldest planet in our solar system is Uranus,

They hold the record for the lowest temperature ever measured at -371°F (-224°C)

It has 27 moons.

Its largest moon is Titania.

ADDITIONAL INFORMATION 

Neptune is also extremely cold, with an average temperature of -214°C (-353°F)

NOTE:  IF THE OPTION IS Pluto, Saturn, Mars, Jupiter ( Pluto is the correct answer)

Pluto, which is no longer classified as a planet (it is a dwarf planet), is the coldest of all the large bodies in the outer solar system,

has a temperature of about -225°C (-373°F).

NOTE: IF THE OPTION IS Uranus, Neptune, Venus, Pluto ( Uranus is the correct answer)

According to most sources, the coldest planet in the Solar System is Neptune.