1.A student plays volleyball on the beach on a hot day. She sweats a lot and she swims to cool down, but she does not drink much.

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.

the answer is:

carbon dioxide