Ms. Lewis is a chemist mixing two solutions together. A chemical reaction takes place, and the solution becomes warm. Which statement best describes what has happened?

The intervention of extraterrestrials has been used to explain the bermuda triangle, a region of the atlantic ocean where ships and planes are frequently lost, leaving no evidence behind. how would this explanation best be characterized?

What is the average speed of a car that traveled 300.0 miles in 5.5 hours

Which substance contains thylakoids? a) nadph b)atp c)stroma d)chloroplast