What are two reasons that the troposphere can contain so much water vapor?

What are two reasons that the troposphere can contain so much water vapor?

Gravity, combined with the compressibility of air, causes the density of an atmosphere to fall off exponentially with height, such that Earth’s troposphere contains 80% of the mass and most of the water vapor in the atmosphere, and consequently most of the clouds and stormy weather.

What are 2 characteristics of troposphere?

Characteristics of troposphere

• it is the first atmospheric layer closet to Earth’s surface.
• the troposphere is the region where weather occurs.
• the temperature of troposphere decreases with an increase in height.
• the troposphere makes up approximately 75% of Earth’s atmosphere by mass.

What are the 2 main processes that increase the water vapor content of the atmosphere?

Two main processes are involved in increasing the amount of water vapor in the atmosphere. These two processes are known as evaporation, and transpiration. Evaporation is generally defined as the process by which water turns from a liquid back into a vapor or gas.

What are two characteristics of water vapor?

Water vapor is transparent, like most constituents of the atmosphere. Under typical atmospheric conditions, water vapor is continuously generated by evaporation and removed by condensation. It is less dense than most of the other constituents of air and triggers convection currents that can lead to clouds.

What are troposphere characteristics?

Characteristics of troposphere:

• it contains 75% of total atmospheric air mass.
• it contains 99% of aerosols and water vapour in the atmosphere.
• it expands 6 to 10 km from the ground level of the Earth.

What are some characteristics about the troposphere?

The air is densest in this lowest layer. In fact, the troposphere contains three-quarters of the mass of the entire atmosphere. The air here is 78% nitrogen and 21% oxygen. The last 1% is made of argon, water vapor, and carbon dioxide.

What is water Vapour for Class 2?

Water vapor is water that is in the form of a vapor, or gas. It is a part of the water cycle. When liquid water is heated to boiling point, 100 degrees Celsius (212 F), it turns into vapor. Water vapor can also be produced directly from ice; this is called sublimation.

What is the effect of water Vapour in the troposphere?

Future warming due to climate change and increasing concentrations of methane are both expected to lead to more water vapour in the stratosphere. Increases in water vapour in the upper troposphere and lower stratosphere (UTLS) lead to radiative cooling at these levels and induce warming at the surface.

Why does water circulate in the troposphere?

The uneven heating of the regions of the troposphere by the sun ( the sun warms the air at the equator more than the air at the poles )causes convection currents, large-scale patterns of winds that move heat and moisture around the globe.

What are some of the characteristics of the troposphere?

The troposphere also traps gases, such as carbon dioxide and nitrogen. Excess accumulation of these substances creates environmental problems, such as smog and air pollution. Most of the weather phenomena take place in this layer. The troposphere contains almost all the water vapor and most of the dust.

What happens to water vapor in the troposphere?

Temperature and water vapor content in the troposphere decrease rapidly with altitude. Water vapor plays a major role in regulating air temperature because it absorbs solar energy and thermal radiation from the planet’s surface. The troposphere contains 99% of the water vapor in the atmosphere.

Can you feel the Wind in the troposphere?

When you feel the wind on your face, see clouds in the sky, and watch a bird flap its wings in flight, you’re experiencing the troposphere. It’s a pretty nice layer to call home. Visit other layers in Earth’s atmosphere. Go out to the stratosphere.

What are the most common gases in the troposphere?

Polar Regions to nearly 4 percent in the tropics. Most prevalent gases are nitrogen (78 percent) and oxygen (21 percent), with the remaining 1- percent consisting of argon, (.9 percent) and traces of hydrogen ozone (a form of oxygen), and other constituents. Temperature and water vapor content in the