Because of cohesion and transpiration, water is able to move against the flow of gravity in plants. The attraction of water to other water molecules, or cohesion, allows water to pull other water molecules up through the xylem.
Room addition cost about $210 per sq.foot and if there is a bathroom in addition you should add $5,000 in average and if there is a kitchen in addition you should add $10,000 in average to total price of $210 per sq.foot x sq. footage.
Adding a Bathroom - Costs To Consider. Adding a bathroom can cost from $3,000.00 for a simple conversion of existing space to $25,000.00 for a new addition to your house. The national average for a 100-square-foot, spa-like bathroom is over $75,000.00, so watch your budget carefully.