Question

If water vapor continued to increase in our atmosphere, what changes would you expect in freshwater lakes? (2 points)

Lake temperatures will decrease, but dissolved oxygen in the water will increase.
Lake temperatures will decrease along with dissolved oxygen in the water.
Lake temperatures will increase, but dissolved oxygen in the water will decrease.
Lake temperatures will increase along with dissolved oxygen in the water.

Can someone please explain this to me?

Answer 1

what do you think is right?

first think about whether the temperature rises or falls as a result of water vapor in the atmosphere. let me remind you that water is the strongest greenhouse gas.

secondly, think about whether a gas is more soluble in warm or cold water, and why that could be.

Answer 2

Well I think that the temperature would rise but I don't know about the second half of the question

Answer 3

okay. you're right so far.

I will explain it to you, although I don't really know the reason myself :)

imagine you have a glass of fizzy water. try heating it to ~80°C and put it on ice afterwards. all the bubbles will be gone, because CO2 is less soluble in warm water than in cold! the same is very much true for oxygen, or any gas that I know of. as the temperature rises, solubility decreases.

so your right answer would be C.

Answer 4

oh my gosh thank you so much for not just giving me the answer and actually explaining it to me. you've been such a huge help. :)

Answer 5

anytime :) you can just link me in your questions. I'm not here always, but I will try helping if I can!