The black triangle become a source of acid rain when?

Who is farming in mountainous areas so difficult without terracing A: poor soil quality of mountainous land B: rugged landscape of mountainous land C:lack of Human Resources in mountains D: lack of animal labor in mountains

Which rocks are examples of organic sedimentary rock? Check all that apply. coal iron ore rock salt limes one sandstone

Detailed measurements of the disk and central bulge region of our Galaxy suggest our Milky Way is a: Select one: A. quasar. B. barred spiral galaxy. C. very flat elliptical galaxy. D. very dusty irregular galaxy. E. normal spiral galaxy.

Why do scientist think earths core contains iron

What are the three types of plate boundaries and how do they move relative to each other?

Choose the state and capital that border the east coast of the United States.

Trees in deciduous forest do what? A. Shed leaves during one season B. Grow in a warm Mediterranean climate C. Have needlelike leaves D. Grow in a climate that is cold year round

How many miles long is the great wall of china

What landforms are created at convergent boundaries?

In which direction does the Sun appear to move across the sky? Ofrom west to east from east to west from north to south from south to north