Question

When marking a room, the marks should be low so they:

A. last longer.
B. are easier to make.
C. can be seen under smoke.
D. will not smudge off during a search.

Answer 1

When marking a room for safety purposes, low marks are important so that they can be seen under smoke and aid visibility during emergencies.

Step-by-step explanation:

When marking a room for safety purposes, the marks should be low so that they can be seen under smoke. In emergency situations where there is smoke, high-up marks may not be visible due to the thick smoke. Therefore, low marks are essential for aiding visibility and guiding people to safety.