4 Because naturalyne is odorless, colorless, and tasteless, refineries add a
harmless chemical called mereaptan to the
gas so that people can smell a leak. The
graph shows the level of the chemical
supply container as it decreases below
over time as natural gas is produced
Mercaptan Container
Time (hours)
0
34 00 78
Der
ar
w
46
uld
The situation is best described by which
.
statement?
The level in the container has changed
at a rate of -240 pounds per hour
The level in the container has changed
at a rate of -100 pounds per hour
The level in the container has changed
at a rate of -300 pounds per hour
J The level in the container has changed
at a rate of -300 pounds per hour
3