Ameasurement of how often something occurs in a given time period is
a.) amplitude
b.) frequency
c.) wavelength
d.) sonic boom

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.

Miner's coal distributors does not mine coal itself, nor does it even store or handle the coal. instead, miner's solicits orders for low sulfur coal from other firms, then purchases the required amount from suppliers and directs them to ship the coal to its customers. what is miner's

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false