Answer:
50% of it .
Explanation:
50% of it is illuminated by the Sun.
If you mean climate change. Then scientists can study it by seeing where places and things are eroded.
Energy can not be created or destroyed but can change from one form to another.
example: as a roller coaster cart loses height the more speed it gains, the potential energy is transferred into kenetic energy
Before positive psychology, the main focus was mostly pathology, that is, studying various psychological issues and sometimes finding ways to treat them, or sometimes not and just studying them for the sake of studying them and noting their occurrence.
75 percent off of water and please water the light water and water water and then go back and please water pollution please 880m
