A plant root presses against a rock causing it to crack this is an example of Chemical weathering Biological weathering Physical weathering Erosion

This is what i found on google “phytoplankton, tiny organisms that live in the ocean, are autotrophs. some types of bacteria are autotrophs. most autotrophs use a process called photosynthesis to make their food.” i hope this you for what your looking for

Yes yes yes very good