As if our immigration/illegal alien problem isn't bad enough, the government now wants to appease the UN by offering Syrian refugees a home in America. But, the government says they will have to be properly vetted. Let's see how that works out since Congress is full of weak, cowards who refuse to call a liar a liar.
Water molecules stick together when they get closer together. This  is due to the partial positive charge of the hydrogen atoms and the  partial negative charge of the oxygeâ¦n atom. The sticking together  is called cohesion.
They also adhere to the surface of the xylem. As the plant transpires, it draws water up through the xylem. A water molecule evaporates, pulling another water molecule up through the xylem. The water sticks to the side of the xylem and does not fall back down. This process is called capillary action. The cohesion formed by the individual water molecules, the tension between the water molecules and the xylem creates such a strong attraction that capillary action gets water to the tips of the tallest trees.