How does installing a cool roof help save energy? A. By encouraging people to spend time on the roof, less energy needs to be used for cooling the building.
OB By absorbing sunlight, the building no longer needs to rely on a heating system.
C. By keeping air conditioner units on the rooftop, less runoff heat is captured by the building in the cooling process.
D. By reflecting the sun's light, the building's cooling systems have less work to do.

D. By reflecting the sun's light, the building's cooling systems have less work to do

A reflective roof can help keep a house cooler when the hot sun beats on it, but it will not lower a home’s heating bill, and may even slightly raise it. It makes sense to install a cool roof, which reflects heat but does not absorb it, only where the summers are extremely hot or humid. Most residential cool roofs are in southern and southwestern states, although homes where the summer air is especially humid—in cities like New York, Washington, or Indianapolis, for instance—also are candidates. Still, the Cool Roof Rating Council (CRRC) says cool roof owners may pay slightly more to heat their homes, although the summer savings outpace the increased heating bill.

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.

you did not give any options thus this is the best answer i can give to you with this little information you have given

> they are both natural and not man made

> they can be tracked and predicted by the right tools

-love shrooms