Trapped oil can be discovered by geologists and extracted through . Multiple choice question.
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A)
mining

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B)
drilling

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C)
excavating

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D)
climbing

humans are now responsible for causing changes in the environment that hurt animals and plant species. we take up more space on earth for our homes and cities. we pollute habitats. human activity often changes or destroys the habitats that plants and animals need to survive.

answer; aerobic conditions; citric acid cycle (krebs cycle) electron transport chain;         anaerobic conditions; fermentation; both glycolysis;