When were fingerprints first used as forensic evidence

Compare these two waves : a. the blue wave has a higher pitch, but the orange wave is louder. b. the blue and orange waves have the same volume, but the blue wave has a higher pitch. c. the blue and orange waves have the same pitch, but the blue wave is louder. d. the orange wave has a higher pitch, but the blue wave is louder.

What is the main reason why some developing countries fear the increase the free trade policies around the world?

What is the area in square meters of 448 g ai foil that has a thickness of 23921 nm? the density is 2.70 g/cm