Imagine you need to dispose of household chemicals such as leftover oil-based paint. Which of the following should you do to help reduce water pollution? a. Dump them over a hill far away from town.
b. Pour them down the kitchen drain.
c. Take them to a hazardous waste collection site.
d. Put them out with other household trash.

I think that the answer is C. Take them to a hazardous waste collection site.

Explanation:

It seems like the safest thing to do. Hope this helps :)

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.

to figure the total magnification of an image that you are viewing through the microscope is really quite simple. to get the total magnification take the power of the objective (4x, 10x, 40x) and multiply by the power of the eyepiece, (usually 10x)