California's economic development vastly increased in America's post-WWII era. What were some of the natural environmental problems people MOST likely experienced in California?

A. mudslides, earthquakes and brushfires

B. tornadoes, tsunamis, and hurricanes

C. mudslides, tornadoes, and earthquakes

D. brushfires, tsunamis, and mudslides

Which of the following was a similarity between classical mesoamerican and south american civilizations ?

Match the following: 1. empirical the belief that an idea should be evaluated based on how it works 2. fundamentalism knowledge based on observation and experiment rather than theory 3. obtrusive to intentionally force ideas or intrude on others 4. pragmatism not religious or spiritual in nature 5. secular a religious doctrine that emphasizes a return to rigid principles

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