Just under half the oil that enters ocean water comes from natural oil seeps on the ocean floor. Just over half the oil in the oceans comes from human activities. Which
human activity contributes the most oil to the oceans?

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.

c is the answer to this question. altitude affects the weather because air molecules evaporate.