Which is the best reason for using a temperature probe instead if a thermometer

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

The many stone tools, fragmentary animal bones, and teeth found at gran dolina, spain, indicate that hominids there? a. processed and consumed animals and other hominids. b. did not differ appreciably from earlier asian homo erectus. c. were similar to later homo sapiens. d. none of the above

Currents are caused by temperature and density differences