There are four children. Each has 2 blue pens and 3 black pens. How many pens is that altogether? write this problem two different ways.

Sedimentary rocks found high in the Himalayan Mountains contain fossils of clams, sea snails, and other ocean life forms. What does this tell us about the Himalayan Mountains? A) Continental drift resulted in the movement of tectonic plates.

5. What type of geographic feature is the Sahara?

How can climate and temperature influence an individual's behavior?

Read the first 10 paragraphs (about half) of the article titled "The Arizona-Sonora Border." How has the Arizona-Sonoran region developed a separate identity that is neither American nor Mexican? (Site 1

The himalayas in south asia are an example of what type of plate boundary

What three cities form the global centers of economic activity?

Describe and explain the physical and/or chemical methods used to refine the coal

Explain the characteristics of authoritarianism, and identify two Central Asian countries that have this type of government

Why are the rivers so vital to europe's economy?

5x-4+21+90=180, what is it?