Why was it hard for European explorers of the 15th and 16th centuries to understand the diversity of the native Americans?

For your research paper on the history of maui, you locate a source covering the overall history of the hawaiian islands. as you evaluate the source, however, you decide not to use it in your research because it never mentions maui. this significant omission of information falls under what criterion for evaluating resources?

Before the invention of the loom in 1785, textile manufacturing was: a) regulated under the guild system. b) performed by children working in factories. c) produced in rural cottages under a putting-out system. d) conducted by british colonists overseas.

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