When radium-226 decays to form radon-222, what type of decay occurred?
a. alpha
b. beta
c. gamma
d. electron

The dot diagram represents the motion of the motorcycle as it moves from left to right

If we relied solely on the nonrenewable resources found in the u. s., which one would we run out of first at current usage levels? a. natural gas b. oil c. uranium d. coal

If anyone who can me with this hw? i would really appreciate it