define desertification. don't tell from google otherwise I will delete that answer
Answers
Answered by
1
Answer:
Collins
Air Force School Edition
English Alive 6
Literature Reader pdf
-
Answered by
1
Answer:
A converging lens is said to have positive focal length. A converging lens causes exiting rays to be more convergent coming out than they were entering the lens. A diverging lens is said to have negative focal length.
Similar questions