Question

The hottest planet in the solar system :

• A. Mercury
• B. Venus
• C. Earth
• D. Mars

Answer 1

Answer:

B. Venus

Venus

• Surface Temperature: Venus is the hottest planet in the solar system, with an average surface temperature of approximately 465°C (870°F), which is hot enough to melt lead.

• Greenhouse Effect: The extreme temperature is primarily caused by a runaway greenhouse effect. The planet's atmosphere is composed of about 96% carbon dioxide, which traps heat effectively.

• Atmospheric Pressure: The atmospheric pressure on the surface of Venus is about 92 times that of Earth at sea level, equivalent to the pressure found 900 meters underwater on Earth.

• Planetary Rotation: Venus exhibits retrograde rotation, meaning it rotates on its axis from east to west, the opposite direction of most planets in the solar system.

• Orbital Period: A day on Venus (sidereal day) lasts about 243 Earth days, which is longer than its orbital period of approximately 225 Earth days.

• Physical Characteristics: Often referred to as Earth's Twin due to its similar size, mass, and density, it lacks any natural satellites (moons).

• Observation: Because of its proximity to the Sun and high albedo (reflectivity) of its thick clouds, it is the brightest object in the night sky after the Moon.