What can astronomers determine by analyzing the light a star emits?

Who needed protection from railroads? 1865-1900 apush

Which of the following refers to treating all patients or first aid victims as a potential source of bloodborne pathogens by taking all precautions to prevent contamination?

Giving 30 points away plus brainliest if you answer correctly if you're found to be at fault in your driver license will be canceled within 90 days unless you complete a 12-hour advanced driver improvement course, complete four hours of behind-the-wheel training, and pass the extended driving test. a. a crash that results in an injury b. a crash in a school zone c. two crashes within two years d. three crashes within three years