A) The data to support his hypothesis, so he should investigate if the same change happens in the density of solid water.
Answer:
Plants are under the Eukarya,
Bacteria fall under Bacteria,
and Animals/Fungi lie under Eukarya as well
Explanation:
Although, I'm not sure about the entirety of this question, when reviewing claims and evidence, check your sources to make sure they are reliable.
Answer: It's showing the change of the average temperature.
Explanation: