Yes - the atmosphere of Venus is 90 times more dense than that on Earth and it is made of 96.5% of CO2 and a 3% of nitrogen. Interestingly there is almost no water in the atmosphere of Venus. Because water vapor is a lighter gas than CO2, water vapor and other lighter gases would tend to rise and be swept away by the solar wind. By comparison, the atmosphere of earth is about 70% nitrogen, 29% oxygen and 1% other gases like argon, water vapor, helium, nitrogen, and a smidgen of CO2 (about 0.04%).
On earth, most of the greenhouse effect is due to water vapor. Water vapor causes between 36% and 66% of the greenhouse effect on Earth for clear sky conditions and between 66% and 85% when including clouds - depending on how cloudy an area is. The rest of the greenhouse effect is attributed to methane, CO2, nitrous oxide, and CFCs.
Because of the denser atmosphere and the chemical composition Venus experiences an intense green-house effect that raises the temperature over the surface to more than 470ºC. Clouds are common on Earth but they completely cover Venus' atmosphere. They are made of sulfuric acid droplets at 50-70 km above the surface and at temperatures comparable to Earth's surface temperatures. Once solar energy penetrates the clouds, they act like a blanket to keep the heat in. You see the same phenomena on earth where cloudy winter nights tend to be warmer than winter nights with clear skies.
The denser atmosphere of Venus also adds to the greenhouse effect there. The added density is like throwing on more blankets to keep you warm in bed. The more blankets you have, the less heat can escape.
The greenhouse effect
The earth's atmosphere does NOT trap heat "like a greenhouse". It is a completely different mechanism, misnamed the "greenhouse effect".
Carbon dioxide released in the atmosphere creates a greenhouse effect by trapping the heat radiated up from the earth.
greenhouse effect
The greenhouse effect is simply the atmosphere's ability to retain heat. This is caused by gases, which we call greenhouse gases. These gases trap heat, rather like greenhouses trap heat to help grow plants in cold climates.
They help trap heat in the atmosphere, the enhanced greenhouse effect, thus increasing the overall heat on Earth.
Greenhouse gases such as carbon dioxide, methane, CFC's, and water vapor trap trap the heat in the Earth's atmosphere.
greenhouse gasses trap sunlight (heat) in the earths atmosphere causing the planet to get warmer
The Greenhouse Effect. It happens when Greenhouse Gases (CO2) thicken the atmosphere and trap heat.
The greenhouse effect (greenhouse gases capture heat radiating up from the earth).
No because the atmosphere on Mars is too thin to trap much heat. With so little atmospheric density, heat is not trapped and the greenhouse effect does not take place.
Because they have the same effect as a greenhouse. They trap heat inside them, just like a greenhouse does to help the plants grow.