B.) methane gas from cow manure
C.) dust from fertilizers used on crops
D.) smoke from the burning of fossil fuels
A.
Heat always flows from cooler objects to warmer objects.
B.
Heat always flows from warmer objects to cooler objects.
C.
Heat never travels in a similar pattern.
D.
Heat never transfers from solids to liquids.
Answer:
3.4
Explanation: