The boundary between the troposphere and stratosphere is called:

a. thermopause.

b. mesopause.

c. stratopause.

d. tropopause.

Sand Dunes are not stationary over time they move. What moves them? In what way do they move?

Which type of good is interchangeable with another good? A. substitute B. normal C. fungible

What is the name of the strip of land that became the site of the Sumerian and Babylonian civilizations? a. Nile River Valley b. Asia Minor c. Indus Valley d. Fertile Crescent

What are the postive and negative affects of agriculture?

What weathering break things down and creates a new substance

What are some abnormal weather conditions? i have to write one paragraph on how they are the same and 1 on how they aren't and i cant think of any considering we haven't learned jack about them.

What is able to be learned from studying political maps?

What comes from certain rocks and is used for energy

All of the following are agents of rock erosion except Wind Glaciers Soil Gravity

Whst are the latitude line that divide the world into the northern and southern hemispheres