Why might some words in a text be in bold-faced type?(1 point) They might be definitions or key concepts. They might contain information from an outside source. They might be historical information. They might be proper nouns.

number   5 i know this because savannah was the first capital and i took the test and all you have to do is look up a map of georgia savannah.

incident infrared radiation is blocked. visible and ultraviolet radiation heat   earth.

earth radiates infrared radiation. infrared radiation is blocked and heats earth. visible and shortwave radiation heat earth.

earth radiates longwave radiation

longwave radiation is reflected downward longwave radiation heats earth

climate change is the big reason to the decline of the indus valley which also caused floods. so i dont know what answer would best fit the description thats just what i found online! have an awesome