According to the law of conservation of mass, which of these is true? a. when a physical change occurs, some of the mass is destroyed. b. when a chemical change occurs, some of the mass is destroyed. c. when both a physical and chemical change occurs, mass is added. d. when either a physical or chemical change occurs, no mass is destroyed. ( sorry don't know what subject for this since there isn't )

a and b

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explanation:

one is through turgidity. this occurs before ground tissue ( collenchyma

and sclerenchyma cells) become well

developed to give structural support to the plant as it grows bigger. the xylem

tissue (composed of rigid tissue) of the young

plant render this support and also maintaining osmotic turgidity of the surrounding

plant cells.