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One mistake could have a huge loss, so the chemistry experts began the experiments under a lot of tension. (caused)

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Chemicals in the body our food into useful substances. (separate … into simpler substances)

Over the last few decades the tremendous growth in information technologyour everyday life. (has had a strong effect on)

We might add a few additional sources of protein for the sake of a healthy life. (be wise or use good judgment to)

The women who medical help said the intensity and frequency of the chest pains made them feel they might be related to heart disease. (tried to obtain)