as you were taking lettuce in the grocery store, you were surprised when water sprinklers suddenly went on, spraying fresh water on the produce. when you got back home, you immersed the lettuce in a salt solution, and within several minutes they became limp and soft. what are the explanations for the spraying procedure in the store, and your observation at home?

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on

When plants die fungi breaks them down