Which of these is a run-on sentence?
a. you and i and the whole team will go.
b. before lunch, i played volleyball; after lunch i did again.
c. i went home and ate and ate.
d. i thought about what he'd said soon i realized he was right.

A run-on sentence is a sentence which uses punctuation marks incorrectly.
The correct answer then is D) I thought about what he'd said soon I realized he was right.
There should be a semicolon (;) or a dash (-) between said and soon. 

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 .