Tap the phrase that "it" refers to. but pillownauts take lying in bed to another level. In order to help NASA researchers understand what happens to the human body when it leaves Earth pillownauts willingly take part in studies, despite the discomfort and changes to
their bodies that they will experience. They know their work will one day help astronauts travel as far as Mars. Thanks to the information collected in the study of
pillownauts, the agency has solved some of the negative effects of weightlessness on bodies. NASA installed exercise equipment on the International Space Station
Astronauts now perform a two-hour daily workout routine. Astronauts also wear compression socks sleeves, and suits. This clothing imitates gravity's pressure on their bodies. Finally, astronauts sleep upright strapped in a
vertical bed bag which allows blood to pool in the legs. relieving head pressure and preventing headaches. This
makes it a very welcome item on the space station
Answer both pls

Read the excerpt from "mother tongue." those tests were constructed around items like fill-in-the-blank sentence completion, such as “even though tom was mary thought he was ” and the correct answer always seemed to be the most bland combinations of thoughts, for example, “even though tom was foolish, mary thought he was ridiculous.” well, according to my mother, there were very few limitations as to what tom could have been and what mary might have thought of him. so i never did well on tests like that. how does tan build a central idea of her story in the excerpt? tan discusses the types of questions on achievement tests to support the idea that the tests limit students’ ability to write well. tan explains a question on a language achievement test to support the idea that the tests should include more interesting content. tan gives an example of her experience with achievement tests to support the idea that they are not always accurate measures of language ability. tan considers how her mother might answer a question on a test to support the idea that nonstandard english limits a person’s ability to communicate.