Answer 3:
(B) Horizon line
The titles “horizon line” and “eye level” are usually used synonymously. Horizon line/eye level refers to a physical/visual horizon where sky departs from land or water. It is the exact height of the viewer's eyes when viewing at an object, interior scene, or an exterior scene.
Answer 4:
TRUE
Indirect lighting is a sort of ambient lighting. Indirect lighting decreases shadows and reflected flash. It is particularly suitable for rooms with reflective surfaces such as computers or televisions. To counter bright reflected "hot spots" transfer the light source away from the reflector wall or ceiling.
