Pls help some one I’m really struggling on it and it’s due really soon

What is the full meaning of rfid on computer

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

What geologic process is related to caldera formation?