For the 1-hour average value, a city reports 0.17 ppm ozone. the permissible limit is 0.12 ppm ozone. by what amount in ppm does the report value exceed the permissible limit? this exceeded amount is what percentage of the permissible level?

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.