A) only biological resources, because "abiotic" refers to human-made materials.
B) non-biological resources only, including petroleum and ores.
C) any naturally occurring substance.
D) human-made materials, because humans are natural.
E) all naturally occurring materials that have the potential to be useful to humans.

A) Lobsters
B) Honey
C) Gasoline
D) Crude oil
E) Pristine forests

A) Water used for generation of hydroelectricity
B) Agricultural crops
C) Hydroponically grown tomatoes
D) Silk worms
E) Free-range chickens