Ateacher calls on a student and the student fails to respond. the teacher then asks another question designed to illicit a response from that student. this process is best described as:

When arriving at a navigation lock what is the order of priority

Which statement is a good description of a model? a) models are a description of nature based only on one or two variables. b) models are testable ideas but they are not very to most people. c) models are a description of nature that predicts more accurately than real events. d) models are an approximiation of a real system that omits all but most essential variables in a system.

What are the most populous and least populous areas of russia? and why are some areas more heavily populated than others?