1.317 × 10^25 lbs i believe.
The anser is D) Plastids in roots cells are large and designed to store water for later use.
Oxygen has a partial negative charge, whereas hydrogen had a partial positive charge.
This means that water molecules are polar and can be used to dissolve a lot of chemicals, that's why water is such a popular solvent.
On a giant pasteboard with pictures, and explanation on what each type of engineer.