#19 is pneumonia, #20 is stick to well marked trails
People in this pandemic have lots on their mind these days. Causing people to stress, using stress management can give you ways to not feel it as often. People take it because they have more things to do and to pay for and that can really get to you at times. So having stress management classes can help clear your mind and be better.
Answer:
refrigeration and gmos (this is based on research but it is souly opinion based because it all depends on what you think is the most important. please accept this answer with discretion.)
Explanation:
refrigeration because it helped improve shelflife for food all across the world.
gmos because it saved many crops from complete devastation and saved farmers from endless debt and depression (of money).
