We can see each other in the classroom right now because we a. reflect visible light
b. absorb visible light
c. reflect infrared light
d. absorb radio waves.

Adozen is 12, and your needing to calculate the weight of one medium egg, so i would do 21/12=1.75 per egg, and check your answer by doing 1.75 * 12= 21 : ) : ): ): ): ) i hoped i

Ametal with a large number of free flowing electrons most likely has good conductivity

The correct answer is "hydrogen".