Bubbling with questions?

I wonder

How much water does it take to make a plastic water bottle?

I noticed

Tulips bloom early in the year, even before I water them

I wonder

How much water it takes to grow a tomato?

I wonder

Why shouldn't I drink the water in a reservoir or river?

I noticed

My lawn gets yellow spots in the summer.

I noticed

Reservoirs up in the canyons, what do they do?