15 1. carbon has valence electrons allowing it to easily with other molecules. 2. is the ability of water to bond to itself. 3. is the ability of water to bond to other molecules.

1. four, bond
2. Cohesion
3. Adhesion is correct ... looked in my bio book sorry

1) Carbon has 4 valence electrons allowing it to covalently bond easily with with other molecules.
2) Cohesion is the ability of water to bond with other water molecules.
3) Adhesion is the ability of water to bond to other molecules.

** Both Cohesion and Adhesion are due to hydrogen bonding present because water is a polar molecule.

Transpiration is the answer

It is used to during sexual reproduction between humans