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.
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 .
Air results from a column of air pushing on an area.
A measure of how tightly air molecules are packed together is called .
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