~Hello there! ^_^
Your question: If the sea level were to be lowered, which feature of the ocean basin would be most readily visible...?
Your answer: If the sea level were to be lowered, continental shelf would be the feature that would be the most readily visible. The rest are deep oceanic features.
The answer is option B.
Happy Studying! =)
Around the country of Mexico because the tropics are usually hot so that is why the Mexicans are usually have a darker skin colors than the Americans or the Canadians which are more north than Mexico and the closest to be around the hotter tempature Mexico is the southern American states. In example of are: southern California, Arizona, Texas, Louisiana( usually Cajun Country which is more humid and hotter during the summers), Mississippi, Alabama and Florida. Which these states are hot during the summers and it is that you don't like the heat it is not recommended to be in these states or Mexico.
The mass number of an element is equivalent to the number of Protons and Neutrons in the element. For example Oxygen has eight protons and neutrons, therefore its mass number is 16. You could also calculate this by simply rounding the atomic weight of the element to the nearest whole number. Oxygen's atomic weight is 15.994, which as you can see, would be rounded to 16 :)