The leading cause of limited water supplies is a. low precipitation b. overuse c. limiting use d. government

Option A, low precipitation, is the right answer.

The amount of rainfall an area or biome experiences, is known as the Precipitation. It is the major part of the water cycle; responsible for storing fresh water on earth. Therefore, precipitation is the main reservoir of water for water bodies accessible to humans such as ponds, rivers, lakes and groundwater etc. The rate of precipitation depends upon the vegetation of the area as they perform the water transpiration task. However, the lack of vegetation can influence the water cycle of the area and can restrain the appearance and volume of precipitation. Therefore, the reduction in precipitation or rainfall will lead to limited water supplies.

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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.