In the region made up of the United States and Canada, what large area lacks major cities ?
A. Northern Canada, B. Southwestern U. S., C. southeastern Canada, or D. eastern U. S.

What causes heat transfer in fluids

Match the letters with the correct terms

Which of the following best describes the purpose of a nation’s boundaries? a. to limit the movement of goods and people b. to make it easier for cartographers to create maps c. to make the movement of goods and people easier d. to prevent other countries from invading territory