Which describes increasing the efficiency of an energy resource? switching from coal to solar

making cars that get better gas mileage

using biomass instead of coal

turning off the lights when leaving a room

making cars that get better gas mileage

c. bronchi

i know this is true mom has it.

mark me branliest only got it 1 time!

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

hope this ! : )