Identify which of the following statements are true. - The continents move at about 2–5 kilometers per year

- The continents have always been in their present positions

- In the past, the continents have been joined together to form larger landmasses called supercontinents

- In 100 million years, the continents will probably look very different

Achemistry student needs of 40ml diethylamine for an experiment. by consulting the crc handbook of chemistry and physics, the student discovers that the density of diethylamine is 0.7 . calculate the mass of diethylamine the student should weigh out. round your answer to significant digits.

During the apollo moon missions, astronauts were concerned about the effects of newton's third law of motion when: o a. they ejected waste water, because they were concerned that it would push them off course. o b. they reentered earth's atmosphere, because they were carrying heavy moon rocks. o c. they took off from earth, because a large force was required to generate large acceleration. o d. they detected incoming space debris, because the inertia of the debris could damage their ship.

Which of the following is probably the least necessary character trait needed to be a good clinical nurse?