1) How are the moon’s craters evidence that large meteoroids probably hit Earth?

2) Why is evidence of meteoroid impact rare on Earth, despite the fact that meteoroids often pass into Earth’s atmosphere?

3) About what age are the rocks that show the highest level of iridium?

4) What are two possible sources for the high iridium level shown in the graph?

5) In several other parts of the world, rocks of the same age have similar levels of iridium. What can you infer from this information?

Kate is 14 years old and just started taking dance classes with her friends at a local dance studio. this is her first time in a dance program, so everything is new to her. her friends convinced her to join the class since they have been enjoying it for a few months. how could the following terms her succeed in the dance class? ● secondary reinforcement ● identity vs. role confusion ● observational learning how could the following terms hinder her success in the class? ● circadian rhythm ● basal ganglia ● vestibular sense

How does public opinion differ on foreign and domestic policy issues? how does this affect the policy- making process?

According to the nebular theory, the planets formed from a process called . after our protosun formed, remaining dust and gas from the nebula collided, combined, and gravitated together to form the planets.