Which contributions did Johannes Kepler make? Select three options. He revived Aristotle’s model of the solar system. He solved Ptolemy’s model by proving elliptical orbits. He proved Galileo’s calculations were incorrect. He determined that planets move faster when closer to the Sun. He discovered laws of planetary motion.

Which type of college offers open admissions? a. a liberal arts collegeb. a four-year collegec. a two-year community colleged. a public university

Mount saint helen the great lakes and death valley are physical features of the earth which scientific term describes these features

In an ecosystem, marsh snails feed on phytoplankton and painted turtles feed on marsh snails. pollution has resulted in the depletion of phytoplankton. what effect would this situation likely have on the population of marsh snails and painted turtles? as phytoplankton were destroyed, the population of marsh snails would most likely then the population of painted turtles would mostly likely a. 1. increase 2. decrease 3. stay the same b. 1. increase 2. decrease 3. stay the same