Why is Venus the hottest solar system planet?(1 point)
Responses
It has abundance of nitrogen and oxygen gases.
It has abundance of nitrogen and oxygen gases.
It has a core, a mantle, and a crust.
It has a core, a mantle, and a crust.
It is closest to the sun.
It is closest to the sun.
Its atmosphere is rich in carbon dioxide gas.
Its atmosphere is rich in carbon dioxide gas.
Orbiting Bodies' Properties Quick Check
3 of 43 of 4 Items
Question
The table shows properties of some planets in the solar system.
Property Venus Earth Mars Jupiter Saturn Neptune
Average Distance from the Sun (AU) 0.72 1.0 1.5 5.2 9.5 30
Length of Year (Earth years) 0.62 1.0 1.9 11.9 29.4 164.8
Time for One Rotation (Earth days) 243 1.0 1.03 0.41 0.44 0.67
Mass (compared to Earth) 0.80 1.0 0.1 318 95 17
Surface Gravity (compared to Earth) 0.90 1.0 0.38 2.53 1.06 1.14
Size (compared to Earth) 0.94 1.0 0.53 11.0 9.1 3.9
Average Surface Temperature (ºC) 462 14 –62 –145 –140 –214
Number of Moons 0 1 2 79 82 14
The weight of an object depends on the force of gravity acting on it. On which planet would a given object weigh the most?
(1 point)
Responses
Mars
Mars
Saturn
Saturn
Jupiter
Jupiter
Earth
The correct answer is: Its atmosphere is rich in carbon dioxide gas.
Venus is the hottest planet in the solar system primarily because of its thick atmosphere, which is composed mainly of carbon dioxide (about 96%) and also contains traces of sulfur dioxide and other gases. This greenhouse effect caused by the thick carbon dioxide atmosphere traps heat from the sun and leads to extreme temperatures on the planet's surface, making it the hottest planet in our solar system.
The correct response is: Its atmosphere is rich in carbon dioxide gas.
Explanation:
Venus is the hottest planet in the solar system primarily because of its thick atmosphere, which is composed mainly of carbon dioxide (CO2). The atmosphere of Venus creates a runaway greenhouse effect, trapping heat and preventing it from escaping back into space. This leads to extreme temperatures on the surface, with an average temperature of about 900 degrees Fahrenheit (475 degrees Celsius). The high concentration of carbon dioxide in the atmosphere acts as a blanket, trapping the heat and causing the planet to heat up. This is different from Earth, where the greenhouse effect caused by carbon dioxide is regulated by natural processes.