How is fire danger or risk now determined over large areas?
A) Visible-light sensors on satellites measure the variable shades between green and brown.
B) Infrared sensors on satellites measure greenness versus average greenness.
C) Forest service personnel collect vegetation samples and analyze their water content.
D) Forest service personnel fly over regions to analyze for dry vegetation.
E) Fire lookout employees scan their region to analyze for dry vegetation.

Question

Quizplus · Accepted Answer

Infrared sensors on satellites can detect changes in greenness and moisture content, allowing for determination of fire danger risk over large areas. This method is more efficient and covers larger areas than the other options.

How Is Fire Danger or Risk Now Determined Over Large