Answer: Humans can affect the biosphere by reducing biodiversity in the environment. This can be due to cutting or burning down trees, constructing neighborhoods and houses, or emitting carbon into the atmosphere. These cause can lead to the endangerment of many species and possibly extinction.
Photosynthesis is a process by which phototrophs convert light energy into chemical energy, which is later used to fuel cellular activities. The chemical energy is stored in the form of sugars, which are created from water and carbon dioxide.