Which type of fuel is difficult to extinguish using water as the only extinguishing agent?
select one:
a. liquids that are less dense (lighter) than water
b. liquids that are more dense (heavier) than water
c. miscible liquids
d. polar solvents

Option A

Explanation:

Fighting flammable substances such as grease or oils fires with water is dangerous and might cause it to spread as the liquids are less dense than water and hence forms a layer on top of water. Water will thus increase the surface area for the less dense liquids to spread, hence spreading the fire.

one state would change   like louisiana to texas. thats a change

explanation:

frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa