You are trying to get a sailboat to land on the shore. Do you think it would it be easier during the day or night and why?

During an experiment, readings for blood pressure in a persons body were found to be constant . however , when he measured by a different blood pressure cuff , the readings differed by 15 points for each reading. this difference indicates that the results are

Climate like that in the sahara desert have the fastest rates of weathering

The part of the eye that closes and opens to let light in is .