What fact supports the opinion that paper bags are less harmful than plastic bags

Paper bags can decompose in the environment in about a month meanwhile plastic can take hundreds of years. Plastic is harmful in many other ways too, for instance they release toxic chemicals into the earths soil and land and sea creatures can get caught in plastic or eat it and later die.

answer:

the water molecules are transferred from the roots to the stem or top parts of the tall tree because of important properties of water which are adhesion, cohesion and capillary action. cohesion is the property of water molecules keeps water molecules in a combined state by sharing of bonds between them at the atomic level. adhesion allows the interaction of water molecules with other substances or substrate. adhesion will cause the attachment of water molecules to the wall of the vessel (xylem) of the plant. capillary action occurs when the adhesive force to the vessel wall is stronger than the cohesive force between water molecules. capillary action mimics the transfer of water from a tube or pipe. in this way water utilizes its property to transfer water from down to top level of the plant.  

cell division is not regulated in tumor cells.