Answer:
B. Increase in ocean temperature
D.Increase in ocean surface acidification
Step-by-step explanation:
B. Increase in ocean temperature
D.Increase in ocean surface acidification
B and D support the claim that climate change has increased due to human activities. The increase in ocean temperature is an indicator of climate change, as higher temperatures can lead to more extreme weather events, such as floods, droughts, and hurricanes.
Additionally, the increase in ocean surface acidification is a result of the increased levels of carbon dioxide in the atmosphere, which is a direct result of human activities such as burning fossil fuels.