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Why does grass turn yellow when a stone is placed on it for a few weeks?
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I think it turns yellow because it hasn't been receiving its daily dose of oxygen and sunlight. Grass stays green from the sun, you know...
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BECAUSE IT CANT MAKE FOOD FOR ITSELF BECAUSE OF THE LACK OF SUNLIGHT AND BEGINS TO DIE
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the sun can't get to it...so no photosythensis and the cloroplasts don't get the clorophyll that they need that the sun provides for them.. . x
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As the stone is kept on top of the grass, the sun's heat is absorbed by the stone. Therefore, the grass in that area gets burnt and thus turns yellow.. . It also turns yellow in the absence of sunlight.. !!!!!!!BYE!!!!!!!
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Lack of chlorophyl due to no sunlight.
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The grass will turn yellow because of the lack of sunlight. It has chorophyl in its leaves which require sunlight to be active. No sun, the green pigmentation on the leaves start to fade....
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The stone excludes the sunlight from the chlorophyll within the grass. Any material placed on top will cause the same effect.
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too much moisture and lack of sunlight
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Because it dies due to lack of sun and air circulation,etc.
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