Answer:
If your in the inside trying to take a picture at an upward angle, you risk dropping the camera from where you stand but if your on the top of a building, and place your camera on the ground, you risk having it fall over, or getting damaged by debris from the pollution.
Explanation:
Answer: Fisheyes are almost always used for underwater photography where there are no straight lines to worry about. They also produce sharper images with brighter colors than a rectilinear lens. Depending on your composition, a fisheye can be used to enhance the curvature of the earth
Explanation: I don't know why you are using it. sorry.
It is A! He used a atmospheric perspective.