Homework Help: science

Posted by LILY on Thursday, November 29, 2012 at 11:11am.

HELP FAST!!!!!!!!!!!!!!!! If you see that a hot-air balloon is rising above the top of a hill, what is the top of the hill called?
A. delta point
B. distance system
C. coordinate system
D. reference point

science - Manpreet, Thursday, November 29, 2012 at 11:20am
reference point
science - lily, Thursday, November 29, 2012 at 11:21am
thank you

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