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4 September, 13:51

If the water temperature in a lake drops from 25°C to 10°C, what effect is it likely to have on aquatic animals that have a high demand for dissolved oxygen?

They will find it easier to meet their needs for dissolved oxygen.

They will find it harder to meet their needs for dissolved oxygen.

They will leave the lake and find another with warmer water.

They will adapt to the change in temperature and use more dissolved oxygen.

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  1. 4 September, 17:46
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    For dissolved gases, as the temperature decreases, the solubility increases. Since the temperature is decreasing, there will be more oxygen available so the aquatic animals will find it easier to meet their needs for dissolved oxygen.
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