Which american author, known as the "sage of concord," wrote an essay called "self-reliance" arguing that if people learned to understand nature they would understand themselves? a. herman melville b. ralph waldo emerson c. richard henry dana d. francis parkman

Why did america oppose the axis powers

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal

The current laws today protect the rights of people with disabilities.    a.  trueb.  false