The correct answer is
A: The United States will not behave unethically after the battle.
There's no context clues up here....
You need a period after the first sentence. You also need an exclamation mark after Ahoy.
Answer:
Over time, environmental problems such as drought, groundwater depletion, and climate change can significantly curtail food production and raise food costs. In turn, this can exacerbate public health problems such as obesity and malnutrition, and eventually lead to the scary situation of people going hungry.
Answer:
Cement because it's man made the others are not.
