A block of wood has the mass of 180 grams. It is 10cm long, 6cm wide and 4cm thick. What is its density?

the correct answer to this question is #5

her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.