Which statements correctly describe the properties of air? Select three options.Air has mass but no weight.Air pressure is created by the weight of the atmosphere pushing on Earth’s surface.Pressure is a measure of how tightly molecules are packed.Denser air is heavier than less dense air.Air is less dense at higher altitudes.
✔ nitrogen oxygen carbon dioxide
thermosphere stratosphere ✔ mesosphere
nitrogen✔ oxygencarbon dioxide
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