D hurricanes makes the most sense because lightning isn't and blizzards have nothing to do with ocean waters and tornadoes only occur inland.
Answer:
The marginal cost of increasing production from 5,000 units to 6,000 would be $1,000 / 500.
Explanation:
<span>The significance of chitin in arthropods is Chitin is a structural carbohydrate that forms their exoskeleton. </span>
The answer is a hypothesis Natural phenomena are those that occur or manifest without human input.