The peak above is part of the a chain of volcanic mountains that runs through the middle of central america. a. sierra madre occidentals b. andes mountains c. sierra madre orientals

Which of the layers of the earth has the following three characteristics? i. it is made of molten rock. ii. it has currents that are constantly moving. iii. earth’s plates float on top of its currents.

What are some natural resources found in midwest

How are the arctic and antarctic circles alike?