The first accurate measurement of the size of Earth was made by ___.

a. Eratosthenes

b. Aristotle

c. Ptolemy

d. Newton

What happens to new oceanic crust at a mid-ocean ridge? a. it forms new mountains under the water b. it climbs up the mantle to form a trench c. it gets hotter and sinks into a trench d. it is so dense that gravity puls it into a deep-ocean trench

What does terra australis incognit mean

Which statement is true of the undisturbed rock layers shown? Limestone Shale Sandstone

Which floor is the royal room in burj al arab

Do you thing the same principles of wildlife management would apply to wildlife ecosystems

After chloroflurocarbons were banned, which class of chemicals was used in their place? a. hydrofluorocarbons b methane c. sulfur dioxid d. carbon dioxide

What is the most likely reason the Pueblo constructed most of their buildings out of adobe? A. The architectural style of this type of building was appealing to Pueblo society. B.

This type of economy is often found in a democracy. A) command economy B) traditional economy C) market economy D) restricted economy

How is ozone beneficial to life on earth?

Which of the following has a direct effect on precipitation and climate?