Which of the following processes does not facilitate containment? O A. The water used to cool the fuel rods is enclosed.
B. Enrichment of uranium-235 is done.
C. Steel-reinforced concrete several feet thick surrounds the plant.
D. Workers wear protective clothing.

the right answer is c i just did the question.

the population of unionid mussels in the hudson river decreased after zebra mussels were introduced. zebra mussels, a nonnative species, competed with the unionid mussels for food. the zebra mussels were able to outcompete the unionid mussels, allowing the zebra mussel population to increase dramatically over six years. the unionid mussel population decreased due to a lack of food.

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