1.

Fill in the blanks to complete the statements about the gases in Earth’s atmosphere. 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.FILL IN THE BLANKS

Answer»

Answer:

oxygen

water vapour

carbon dioxide

Earth’s ATMOSPHERE is mostly nitrogen, which MAKES up about 78 percent of the atmosphere, and oxygen which makes up about 21 percent.

water vapour in the air condenses around tiny particles, causing CLOUDS and rain.

the gas carbon dioxide exists in small amounts but is very important because plants use it to make food.

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