What is sibling rivaly? Please don't give me an answer from google. I'LL MARK YOU AS BRAINLIEST!!!

basically there is competion,fighting and jelousey between siblings they  are usually trying to better then the other sibling

Explanation:

Hey there!

Sibling rivalry is one of the most ugly things to have inside of a family. It is usually when there is a huge amount of jealousy, competition, fighting, rudeness, and hatred towards siblings because one wants to be the best or better than other, rather than working as a team.

I hope that this helps!

when in a crucial situation, after calling 911, the correct posture for delivering effective compression is the proper hand placement.

first, place two fingers at the sternum, then put the heel of your other hand next to the fingers and place hand on top of the other. lock your elbows by using your body’s weight and compress the victim’s chest with a depth of 2 inches.

moreover, do 15 compression and 2 breaths, this process must be done four times until there is a pulse or a arrive.