List five exothermic reactions that are going on around you

1) exhalation

2)neutralization reaction of antacids

3)washing clothes with detergents release a small amount of heat

4) degradation of biowaste

5) adding water to calcium oxide

Hope this answer helps you...

sonar - device which is used to find the submit submarines, sankalp ship. sonar waves consists of a transmitter and detector which are installed in the observation centre on board of a ship. the ultrasonic waves are sent into the sea at high frequency about 1000 khz in all direction.

gans

explanation:

vestigial organs (like your appendix) are organs that no longer serve a purpose.