Which behaviors are classified as individual behavior

Why do we perceive objects as retaining their brightness under different lighting levels?

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

One of the reasons that stars are so large is because