What are the areas of highest concentration in the world? Why do you think this is?

Which of these is a major mountain range found in south america?

In 1802, when it seemed likely to many scholars that there was life on Mars, the German mathematician Karl Friedrich Gauss proposed that we signal the Martian inhabitants by drawing huge geometric patterns in the snows of Siberia.

What causes certain disasters to occur in certain areas

How a cloud can hold so many thousands of gallons of water.

What's 50 times 50 times 50 times 50 times 100

Why were the Egyptians able to grow two or three crops per year?

What percentage of Earth is water?

Tall building equipped with machinery for loading, cleaning, mixing, and storing grain

Which mineral property describes how minerals interact with light? cleavage luster streak

California is one of the most seismically active regions in the world. Recently scientists published new calculations that reveal there is a 99.7 percent chance a magnitude 6.7 or larger earthquake will hit California in the next 30 years.