Question

b) It is a large dome-shaped muscular sheet that contracts and

relaxes alternately. On contraction, it flattens and increases space

inside the chest cavity.

i. Ribs

ii. Thoracic cavity
iii. Diaphragm

iv. Sternum

c) The conical shaped piece of aluminium that surrounds the bulb in

the torchlight and directs forward the surrounding light emitted by

the bulb is known as the ____________________.

i. Cell

ii. Switch

iii. Glass

iv. Reflector​

Answer 1

Answer:

Reflector

Explanation: