Answer:
the answer is height above the sea level pls mark me as the brainliset hope it helps you
If it is deeper in the ground, it is most likely to be older
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or just submit it cuz i don't think middle school matters that much heheheheehhdk c kv n
1) put some form of lubrication like oil or water in front of the block so that it can slide easier.
I’m not sure about the second one sorry x