Dna testing was commonly used in forensic science beginning in the 1920s. true or false?

False.

Explanation:

I am almost entirely sure that DNA testing had not been discovered at this time, but regardless of whether that is true, the very first criminal case that DNA testing was used in occurred in 1985. So no, it was not used commonly in the 20's.

answer; (b) clear with a slight blue tint;

the circumference of the solar disc is 4375246 km, nearly.

explanation: