-automatic mode lets the camera decide what the best shutter speed, aperture, iso, white balance, and focus would be for the picture
-Portairt mode will help you to keep your background out of focus and focus on a single subject
-Macro mode is for shooting small objects really close up
-Landscape mode is the exact opposite of portarit mode doing its best to keep the background in focus
-Sports mode is for taking pictures of any kind of moving objects
-Night mode is for shooting in dark areas with not as much light using flash and creating blur in well lit situations
-Movie mode is for recording videos
-Aperture priority mode is just semi automatic where you choose the aperture and the camera decides everything else
-Shutter pritority mode is the same as aperture priority mode except you choose the shutter speed
-Manual mode is the mode where everything is chosen by you