Edwin Hubble found out that what appeared to be large clouds in space were not gas, but . A. galaxies
B. large stars
C. comets
D. the Oort cloud

What do many animals use for transport

How is the motion of the particles of water at 80 ⁰c different from the motion of the particles of water when it is 30 ⁰c?

Time ! for a smell to begin the process of registering in your brain, first you must a) inhale odor molecules into the nasal cavity b)transduce scent chemicals c)have a scent to inhale d)all answers can work