Read the following selection from the article. Interstellar explorers really need a surefire way to identify living "things." That poor chap in the first paragraph might still be alive if only he'd had a dependable "Life Checklist." How does this selection communicate the author's purpose? А It heightens the reader's interest in reading stories about space exploration. B It explains that there is a specific definition applied to all living things in space С It introduces the need for and importance of a checklist for defining life D It offers evidence to suggest that the chances of finding life on another planet are high.​

Aweather forecaster uses doppler radar to predict the track of a storm near the town of meadowlands. when the doppler signal is pointed at the storm from the town's center, the frequencies of the waves appear to be decreasing. what should the weather forecaster predict? a. that the storm will move around the edges of meadowlands without hitting the tosis center o b. that residents should be prepared, because it is impossible to know whether the storm will hit o c. that the storm is moving toward meadowlands and that residents should be prepared d. that the storm is moving away from meadowlands and is not likely to hit the town