Occurs when a wave changes direction at the boundary between two mediums.
a. superposition
b. interference
c. refraction
d. incidence

You have been given the assignment of speaking about the affects of illegal drug use on youth in america. which of the following types of research is likely not to be necessary while preparing for your speech? a. a government website with statistics on convictions for possession among adolescents under the age of 18 b. a library book about the pharmaceutical drug industry in america c. a recent article from cnn.com about a special home for teenagers addicted to drugs d. a website that provides support for parents whose children are in rehab

Answer the question find a book and find the answer to this question

What ideal of imagist poetry is best reflected in this poem by ezra pound in which he compares a crowded metro station to a flowering tree branch? in a station of the metro the apparition of these faces in the crowd; petals on a wet, black bough. a. poetry should be about urban subjects and ideas. b. old poetry should be rewritten in a modern style. c. poets should be able to describe ordinary subjects in new ways. d. poets should write about new subjects with conventional techniques.