Giving 20 points an earth-like planet is 500 light years away why is this an obstacle for a manned space mission a. there are no plans to send a human b. the cost is too low c. humans cannot live for 20 years d. the is no oxygen in space

Ateam from new york presbyterian hospital is conducting a study about a recent increase in cases involving both excess sweating and kidney stones. what would the team need before it draws a conclusion about the cases? medications that are specifically designed to treat the sickness machines that are built to process blood and reduce symptoms until patients are healthy again data that profile the various patients who report these symptoms proof that the excess sweating is related to the excessive kidney stones