Which sentence has a word choice error?
the first lady preceded the president into the oval office
the first lady proceeded the president into the oval office

The sentence that has a word choice error is the second one - The First Lady proceeded the president into the Oval Office.
To proceed means to continue - you proceed doing something, or something proceeds on its own, but you cannot proceed a person - the verb is not transitive and thus doesn't require an object. 
The first sentence is completely correct - to precede means to walk in front of someone, to be the first one there.

I’m just thinking something from the top of my head so it may not be much so if weathering didn’t exist, there wouldn’t be anything to break up earth’s crust naturally. so by assumptions, the rocks on earth would be larger than they actually are since there’s nothing to break them up into smaller parts.overall, i’m not really sure, but all i know is that it’ll mess up the rock cycle that we have now.hoped this .