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Biology

26 December, 04:28

Plants are green because they contain the

protein chlorophyll. A bucket was left on the

lawn for one week. When the bucket was

removed, the grass under the bucket had turned

from green to a yellowish white color. This

change is due to the interaction between the

grass and

(1) decomposer organisms in the soil, an abiotic

factor

(2) the amount of sunlight, an abiotic factor

(3) increased moisture under the bucket, a biotic

factor

(4) the metal composition of the bucket, a biotic

factor