I think the answer is A. Hope that helped :)
Answer:
Ozone is a gas made up of three oxygen atoms (O3). It occurs naturally in small (trace) amounts in the upper atmosphere (the stratosphere). Ozone protects life on Earth from the Sun's ultraviolet (UV) radiation.
Cause their are both have difference s
Answer:
calcium and gold
Explanation:
thats what it said was right
1.123 * 10^3 thatsssss it