Two cities were both 100 miles away from the center of an earthquake, but the vibrations reached one city before they reached the other. Why might the seismic waves have traveled faster to one city than the other? A. One city was smaller than the other.
B. They were traveling through different types of rocks.
C. One city was quieter that the other.
D. It is impossible for waves to travel at different speeds.

Acontrol during an experiment. might change remains constant does not exist does change

What is the oxidation state of each individual carbon atom in c2o42−?

Imagine if during the cathode ray experiment, the size of the particles of the ray was the same as the size of the atom forming the cathode. which other model or scientific observation would have also been supported? 1. this would support dalton's postulates that proposed the atoms are indivisible because no small particles are involved. 2. this would support bohr's prediction about electrons moving in orbits having specific energy. 3. this would support bohr's prediction about electrons being randomly scattered around the nucleus in the atom. 4. this would support dalton's postulates that proposed that atoms combine in fixed whole number ratios to form compounds.