I would say fall/ autumn in South America because they are in opposite hemispheres.
The part that says all atoms of a specific element always have the same mass. Isotopes of an atom have varying masses compared to the standard version of the element.
Using off road vehicles does help contribute to the process of erosion.
Answer:
8o/58*6*10power23 gives u the answer. molecules=moles*avagadrono
moles=weight/molecular wt
hope u understandmark me as branliest
