) Which factors helps to float?
Answers
Explanation:
Nymphaeaceae, or "water lilies," a family of flowering aquatic plants, thrive in freshwater ponds and still bodies of water in temperate and tropical climates around the world. Although they may seem to be floating, water lily roots are actually firmly planted in the soil beneath the water.
Water lilies are well equipped for life in the water, with a stem structure that contains a tough network of bundled hollow cells that hold air and help stems float. Once leaves unfurl, their large surface area offers the plant additional support by using water surface tension to keep the plant afloat.
Water molecules at the surface of a body of water have a stronger attraction to each other than the molecules beneath the surface, creating what is commonly called water surface tension. Similar to the method water insects use to skim across a pond's surface, water lily leaves may have small hairs or other structures to take advantage of water tension. The still water of ponds and marshes ensures water lilies have plenty of water surface tension to help them float.
Water lily leaves are particularly adapted for water life, with the primary cells used for photosynthesis on the top surface of the leaf that faces the sun. A waxy layer, or cuticle, coats the top of the leaf, repelling water so that the plant can "breathe" and to drain off excess water and keep the leaves from sinking.
Answer:
buoyancy force
Explanation:
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