Which of these describes a human activity that uses up a non-renewable resource? building new roads that cause topsoil to erode

chopping down trees from the forest for heating homes

car engines consuming large amounts of fossil fuels

pollutants on roads washing into streams during rainstorms

i believe the answer is true.

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.

4d^55s^1 ( third choice)