What is released when limestone is exposed?

World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course. a. 12.5m/s b. 1.33m/s c. 13.3m/s d. 1.25m/s

Are the earth's ocean floor and continents the same age geologically? why or why not?

When listening the levels of orginization in orginisims from the smallest to most complex , which level is just below organs in complexity