Earth’s atmosphere is mostly nitrogen, which makes up about 78 percent of the atmosphere, and , which makes up about 21 percent. in the air condenses around tiny particles, causing clouds and rain. The gas exists in small amounts but is very important because plants use it to make food.
Earth’s atmosphere is mostly nitrogen, which makes up about 78 percent of the atmosphere, and , which makes up about 21 percent. in the air condenses around tiny particles, causing clouds and rain. The gas exists in small amounts but is very important because plants use it to make food.
Earth’s atmosphere is mostly nitrogen, which makes up about 78 percent of the atmosphere, and , which makes up about 21 percent. in the air condenses around tiny particles, causing clouds and rain. The gas exists in small amounts but is very important because plants use it to make food.
The temperature in the troposphere as you go higher, and in the stratosphere, it as you go higher.
The temperature in the troposphere as you go higher, and in the stratosphere, it as you go higher.
How does the atmosphere protect life on Earth? Check all that apply.It provides oxygen for living things.It prevents Earth from being hit by meteoroids.It allows water to exist as a liquid.It purifies water that falls as snow and rain.It blocks the Sun’s harmful rays.
Density is the amount of mass in a certain .
How does altitude affect air pressure and density? Check all that apply.Air is less dense on a mountaintop than at sea level.Air pressure is lower at low altitudes.As you climb a mountain, air pressure increases.More force pushes on the air at the bottom of an air column.As you descend a mountain, air molecules are closer together.
The layers of the atmosphere are characterized by changes in .
Air results from a column of air pushing on an area.
The troposphere experiences large changes in .
A measure of how tightly air molecules are packed together is called .
Airplanes fly best in .
Did you find these answers helpful?