All of the following actions to protect the sustainability of natural resources except

a.
banning the hunting or fishing of an endangered species
b.
replacing regular light bulbs with compact fluorescent bulbs (cfcs)
c.
walking to a friend’s house instead of taking a car
d.
planting grass in dry climates, even if it requires irrigation

Afarmer who is grown corn for the past five years notices in the sixth year that the his harvest is significantly smaller, despite an increase in labor on the farm. the following year, the harvest continue to decline. which of the following explanations most plausibly accounts for the reduction in corn yield? a) soil degradation b) desalinization c) better irrigationd) terracing