Which is an example of a spontaneous exergonic reaction?
a. protein synthesis occurring in cells
b. marshmallows catching fire
c. photosynthesis

Barbara is converting 78°f to degrees celsius. first, she subtracts 32 from 78. what is the next step?

Which of these is an example of land degradation? a. containers designed to store pollutants leak. b. fertilizers provide too many nutrients to crops. c. garbage is buried so the land can be reclaimed later. d. a drought kills all the plants in an area, leaving bare land

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