Part A Based on the information in the passage, why are extremophiles on Earth important to the study of Mars? 1. Extremophiles that exist in harsh environments on Earth suggest that life on Mars is also possible. O2. Extremophiles that live on Earth may be distantly related to bacteria that have been found on Mars 3. Scientists can use what they know about extremophiles on Earth to locate important resources on Mars. 4. Scientists can study how extremophiles survive on Earth to develop better ways to keep humans safe on Mars​