How can naural gas be manged so that we dont run out

We don’t have to worry because in our current rate of use we have natural gas that is reserved to last 60-90 years. Although the total amount of natural isn’t increasing, the ability to find from new resources expands every day. We can now produce natural gas from deep deposits located beneath the surface of the earth, and in the deep ocean. Natural gas industries are also investing in alternative energy such as solar, wind, geothermal and biomass to make these energy resources more affordable and reliable.

The reflection of the candle in the concave mirror formed an upside-down virtual image that is smaller than the candle.in other words. the answer is the third option, c