Satellites study our air.
Meaning: This sentence means that artificial objects called satellites are learning about the mixture of gases that surrounds Earth by reading, observing, or doing research.
Choice of Words: Satellites are artificial objects that orbit Earth or other planets. Study means to learn about something by reading, observing, or doing research. Our is a possessive adjective that refers to something belonging to the speaker or a group the speaker is part of. Air is the mixture of gases that surrounds Earth.
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