At the beginning of the European settlement, about 425,000,000 hectares of the United States were forested. In 1997, about 300,000,000 hectares of the United States were forested. What percent decrease does this represent? Steps:

1) Subtract starting value from final value.

2) Divide the number from #1 by the starting value

3) multiply by 100 and add a % sign. Write answer as a positive percent.

What is my percent decrease from above?

true is the answer : )

a few examples of ethical concerns involving genetically engineering of humans include

-privacy of genetically tested people

- potential side effects

-long term effects

the animal that would be cutest if scaled down to the size of a cat? elephant

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.