Idont understand this stuff at we know that standard pressure is one atmosphere, or 760 millimeters of mercury. this pressure results from the weight of gas molecules in the atmosphere. as a diver enters the water, he is subject to both water pressure and air pressure. because water is much denser than air, the pressure increases rapidly as the diver descends. at the depth of 34 feet in fresh water, the diver is experiencing 2 atmospheres of pressure (one from air pressure and one from the 34 feet of water). for every additional 34 feet the diver descends he will be under an additional atmosphere of pressure. since water pressure is proportional to depth, how many atmospheres of pressure would a diver experience at 102 feet? why wouldn't this pressure squash the diver? answering this second question may be easier if you think of the reason a person on land is not squashed by one atmosphere of pressure. explain your answer in detail.

The earth's moon is unusually large. two popular theories of the moon's origin include the "sister world" hypothesis, which states that the moon formed from the same materials as the earth, near enough to the earth that they fell into orbit around each other. a second theory is the "capture" hypothesis, in which the moon formed elsewhere in the solar system, and the earth's gravity pulled it into its orbit. studies of what the moon is made of indicate that some of its materials had to come from the earth or from the same area of the solar system where the earth had formed. at the same time, the moon does not contain much of the material that makes up the earth's core, so the moon could not have formed from the same materials as the earth. how do the two facts above affect the described theories of the moon's origin? a. they show that scientists will never agree on where the moon came from. b. they show that more experiments on moon formation need to be done. c. they show that no theory accounts for the existence of the moon. d. they show that neither theory is complete and entirely correct.

Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.

In order to complete this lab. you will need to be familiar with some common chemistry terms. complete the chemical change puzzle and list the relevant terms and their meaning below a.rectant b.product c.supernate