Dna gives an automatic trace, ur dna is original and no one else has it so it’s easier to track
Answer:
I believe it would be the first option
Answer: Yes they are
Explanation: plz mark brainliest
Floods and flash flooding Now is the time to determine your area's flood risk. ... Flash floods have a rapid hydrological response in catchments with short lag times, ... Two different types of flood hazard assessment methods were tested: (i) a ... elongation ratio and roughness index can be used to explain the flash flood types.