Water is a really good source for transport because it is solvent , substances are easily transported if they dissolved. Water being a liquid and a solvent makes one of the best sources of transport.
Structure of water
- oxygen&hydrogen have positive nucleus.
- hydrogen atoms share their electron with oxygen, oxygen still has four unshared outer electrons.
- making Oxygen negatively charged and Hydrogen positively charged.
Water is very cohesive because it is dipolar, meaning it has both positively and negatively charged bits.