Please I need help --> Calculate the approximate diameter of Earth. Use the lowest figure for the thickness of the crust. Show your work.

What landform caused by water erosion and deposition is shown in the image?

Is our world actually shaped as a globe

Which of these describes nerve cells? a. specialized cells that protect the body from harmful bacteria b. specialized cells that maintain structural support c. specialized cells that send messages from one part of the body to another d. specialized cells that the body move freely and maintain flexibility