If the polar bear requires 5,600,000 kcal of energy each year, how much energy do the deals that it eats require each year

Articles of the confederation is a good representation of a system of government.

Based on what you read in the fact sheet, identify the type of customer the company is hoping to reach. super-phonic systems wants to sell phones to customers who: expect the latest smartphone technology. need affordable phone service in remote areas. care more about attractive designs than reliability. will pay top prices for features such as web-surfing.

What greek scientist created a screw to move water for irrigation?