Read the paragraph and answer the question that follows.

as populations increase around the globe, growing demands for energy resources have the potential of straining the earth's ecosystems. scientists around the world have identified ways in which people can use energy more efficiently:

inflate car tires to make cars more fuel efficient.
replace light bulbs with compact fluorescent bulbs.
recycle.
adjust your thermostat.
reduce the temperature of your water heater.
unplug appliances that are not in use.
which statement best describes how the information above relates to human activities?

human activities have increased volcanic eruptions.
overfishing of the world's oceans is leading to the extinction of some fish species.
nations of the world can work together to use energy more efficiently.
moving to cooler climates will save energy.