The Montreal Protocol on Substances that Deplete the Ozone Layer was an international treaty signed in 1989 agreeing to stop production and sale of fluorocarbons -- manufactured chemicals that were very useful as coolants and propellants. It is one of the only examples of a truly universal treaty -- signed by 196 countries and the European Union! -- in reaction to a breakthrough in scientific understanding. Why are fluorocarbons bad

c)red bank

explanation:

red bank is a borough in monmouth county, new jersey, incorporated in 1908 and located on the navesink river, the area's original transportation route to the ocean and other ports.

catya your not at all which answer i've seen you do this on another question!

a is the correct answer

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.