The biotic factors of the North American ecosystem that influence lodgepole pine populations are A.
fire, pine beetles and fungus

B.
clear cutting by lumber companies and -25 oC winter temperatures

C.
the mountain pine beetle parasite and fungus

D.
warm dry summers and cold wet winters

Astore manager timed janette to see how long it would take her to fold and put away a sweater, a shirt, a pair of pants, and a scarf. it took her 26.1 seconds for the shirt, 24.3 seconds for the sweater, 32.8 seconds for the pants, and 18.2 seconds for the scarf. what was the average time it took janette to fold and put away all four items? during a catered lunch, an average of 4 cups of tea are poured per minute. the lunch will last 2 hours. how many gallons of tea should the caterer bring if there are 16 cups in one gallon?