It would be letter A which is energy. The other three are used in weather forecasting due to the fact that the atmosphere is fluid and weather and climate is caused by uneven heat from the star in our solar system which is the Sun to the Earth in which heat transfer occurs
introduction of deadly diseases, forced slavery by some nations, and forced colonization by Europeans
Answer: The mean is 3
Explanation: The mean is the average of the set of numbers. To find the mean of a set of numbers, you add them together and divide by the amount of numbers. When you add all the numbers, you get 30. Since there are 10 numbers, you do 30 divided by 10, which will give you 3.
27 is a factor of 54 so 27
