Three materials, put them in order of what light does when it hits them.
clay, shiny dimes, eyeglasses

On a mild saturday morning while people are working inside, the furnace keeps the temperature inside the building at 23degreesc. at noon the furnace is turned off, and the people go home. the temperature outside is a constant 16degreesc for the rest of the afternoon. if the time constant for the building is 3 hr, when will the temperature inside the building reach 18degreesc? if some windows are left open and the time constant drops to 2 hr, when will the temperature inside reach 18degreesc?

What is the role of the water cycle in maintaining freshwater levels in lake and rivers?

Preciso de ajuda na parte de termometria e tenho prova amanhã ajuda ae prf