Members of the plant family Cactaceae (cacti) are native to the Americas and thrive in dry environments. They have a number of specialized adaptations, including reduced leaves, succulent (fleshy) stems for water storage, and spines for defense against herbivores. Some members of the family Euphorbiaceae are native to the African desert and resemble cacti, having similarly reduced leaves, succulent stems, and thorns. Other species in the Euphorbeaceae do not have these traits. Requried:
Based on this information, what can you say about the morphological traits of Cactaceae and Euphorbiaceae indicated above?

the answer is b: 1.4 km/hr

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.