Answer:
Here's one:
Drugs, many illnesses have been cured by them, but many more have suffered from a more deadly illness, substance abuse.
I'm not the best at ELA, but i hope this helped! :)
Scientist use it so all the scientific experiments are conducted with the same weights and measures.
This would be true, I hope I helped
I believe the answer is the 3rd option. My apologies if I’m incorrect. :)