The period of an element is the amount of time is it takes for half of radioactive isotope to decay. true or false? it false, make the statement true

Select all the correct answers. which statements fail to meet the requirements of a scientific claim? 1 even though evidence indicates that the solar system's planets follow elliptical paths, copernicus's model involving circular orbits is true. 2 the evidence supporting newton's laws of motion was accurate in newton's time, but the universe operates differently today. 3 flowers that reflect the most ultraviolet light are more likely to attract bees and other pollinators than flowers that reflect less ultraviolet light. 4 in the final 100 meters of a 10,000-meter race, an athlete's speed is more strongly related to anaerobic efficiency than to aerobic efficiency.

The body of water found at number 4 on the map above is the

About how many years does it take for one cycle of surface water to become deep water and then surface water again in the oceans? 101001,000