A. rust because rust is the only chemical weathering listed in the answers that i know of
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The correct answer is d. 3.5 billion years.
Prokaryotes were the first forms of life on Earth long before simple multicellular life appeared because of their ability to withstand extreme conditions. It is believed that the first living forms were bacteria combined with archaea in the microbial mat (multi-layered sheet).
<span>a strong downward current of air from a cumulonimbus cloud, usually associated with intense rain or a thunderstorm.</span>
Using a different kind of bond called love
just kidding its a hydrogen bond