Amarine biologist is working on a research vessel to study whale calls. his recording devices are measuring depths above 1,000 meters. as his vessel travels to cooler waters and begins to measure at greater depths, the marine biologist needs to make adjustments to his monitoring devices. why is that? a- from 0 to 1,000 meters, sound travels at a faster speed in cooler water. b- from 0 to 1,000 meters, sound travels at a slower speed in cooler water. c- at depths deeper than 1,000 meters so

Read the paragraph below and answer the question that follows. "andy was asked to speak in a school assembly about a fundraising opportunity for a fellow student who had recently been diagnosed with leukemia. andy's stomach hurt and his hands were cold. "steady man," he thought. "you can do this. it's for tim. he needs our ." andy could picture the students wanting to get involved. it occurred to him now that he wasn't just giving a speech. he had something worthwhile to say. which strategies did andy use to reduce his apprehension? select all that apply." be prepared. use muscle relaxation techniques. get experience. think positively. focus on communicating to the audience.

Anode is a point on a wave where there is no vibration. a.true b.false

The health care system in is referred to as a singleminus−payer health care system, and is a system in which the government provides national health insurance to all residents.