II. Explain how are bioluminescent light sources different from other luminous objects? III. Complete the following table by identifying energy sources for each energy type listed.
Sources:incandescent lamp, sun , moving car,
strings of piano, trampoline, battery, heater, infra-red lamp
Energy typeSource
Chemical
Sound
Light
Electrical
Heat
Elastic potential
Nuclear
Kinetic

Abox that has self-contained cable clamps holds two light switches. a two-wire no. 12 cable with ground feeds the box, and a pair of two-wire no. 12 cables (four conductors) with ground wires leaves the box to feed the light fixtures. the second switch is fed by a no. 12 jumper wire from the first switch. which one of the following box combinations would furnish the minimum allowable volume? a. two 3-inch × 2-inch × 21⁄2-inch gangable device boxes b. two 3-inch × 2-inch × 11⁄2-inch gangable device boxes c. two 3-inch × 2-inch × 23⁄4-inch gangable device boxes d. two 3-inch × 2-inch × 21⁄4-inch gangable device boxes