Why Leaves Turn Color in the Fall by Dianne Ackerman

On a hill, a small square of yellow appears to be a lighted stage.

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• False

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Soon the leaves will start cringing on the trees, and roll down in the clenched fists before they actually fall off.

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A turning leaf stays green at first, then reveals splotches of yellow and red as the chlorophyll gradually breaks down.

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The farmland also changes color, as tepees of cornstalks and bales of shredded -wheat -texture hay stand drying in the fields.

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The farmland also changes color, as tepees of cornstalks and bales of shredded -wheat -texture hay stand drying in the fields.

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• False

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Where do the colors come from?

• Sunlight rules fewer living things with its golden edicts.

• Sunlight rules most trees with its golden edicts.

• Sunlight rules most living things with its golden edicts.

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What do the leaves stop producing the pigment chlorophyll?

• Because the leaves are not receiving some sunlight.

• Because the leaves have too much chlorophyll.

• Because the leaves do not receive water.

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Where is appreciated the most spectacular range of fall foliage?

• Northwestern United States and southern China.

• Northwestern United States and eastern Chinca.

• Northeastern United States and easter China.

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Which nutrient depends on the temperature and amount of sunlight?

• Anthocyanin

• Carotenoids

• Chlorophyll

• None

Which nutrient does give the color to corn?

• Anthocyanin

• Chlorophyll

• Carotenoids