Final answer:
The greenhouse effect is stronger on Venus compared to Earth due to the significantly higher levels of carbon dioxide in Venus's atmosphere, leading to a runaway greenhouse effect and extremely high surface temperatures.
Step-by-step explanation:
The greenhouse effect acts on Venus the same way it acts on Earth. However, it is stronger on Venus because Venus has a much higher concentration of carbon dioxide (CO₂) in its atmosphere. The atmosphere of Venus contains almost a million times more CO₂ than Earth's, which acts as a thick blanket trapping infrared radiation. This trapped heat significantly raises the planet's surface temperature, leading to a runaway greenhouse effect that makes Venus extremely hot, with surface temperatures far surpassing Earth's.
On Venus, this greenhouse effect causes its lower atmosphere to reach very high temperatures before the planet can radiate as much energy as it receives from the Sun. As opposed to Earth's greenhouse boost of 33 K, on Venus, the effect amounts to hundreds of degrees, illustrating an extreme version of the greenhouse effect.