The protective layer of a framed and mounted photograph keeps what out?
water
dust
sunlight
all of the above

What did michealangelo do when hired by the church to paint the sistine chapel ?

During which period did the artists create works using software such as photoshop, without actually programming

Which best describe the role of xylem in a vascular plant? a. transfer of glucose from leaves into a plant b. transfer of water from roots into a plant c. transfer of photons through leaves of a plant d. transfer of chloroplasts through a plant