The longer form of the contraction "let's" that sounds like lettuce is "let us."
Yes, because air is what causes it to go bad so a head of lettuce is exposed ot less air than shredded lettuce is so it will stay fresh longer.
You are no longer hungry.
The noun lettuce has varied usage in the plural. Traditionally the usage is "three heads of lettuce", but the alternative "three lettuces" has become very common during the last century. The collective noun is always "I like lettuce" or "this farmer grows lettuce".
You can put it in an airtight container which will help but only buy for immediate use, The head lettuce actually lasts longer, but it is more work. the bagged salad does not last long
IS THERE IRON IN LETTUCE? No there isn't iron in brown lettuce because it is rotten. When it is rotten the iron appears to escape from the lettuce because the lettuce is no longer fresh enough to eat.
I think diz nuts last longer
It will last longer in a hot envioroment.
Outlast means to last longer.
Monitors last longer
Not all women last longer than men. And it depends what you mean by "last longer".
If you want any batteries to last longer then put the batteries in your fridge and that helps them to last longer!!