Australia is the home of 95 percent of the world's diamond opal or ruby supply.

Put these innorder of size from smallest to biggest: creeck, rill, gully, river.

In one day, how many times does the observer pass through a tidal bulge

Read the article titled "Benefits of Dams." What are the economic, environmental, and social benefits of creating dams?

A lack of sewage structures in overcrowded cities may lead to

What type of mountain ranges form at convergent plate boundaries? A. folded and volcanic mountains B. fault-block and folded mountains C. volcanic and fault-block mountains D.

What is the Trans-Siberian Railroad? a. the world's longest continuous railroad line b. the major link between Moscow and Europe c. the best way to travel between Russia and Afghanistan d. the shortest railroad in Siberia

What are the 4 different fields of study of Earth's systems?

What are the possibilities for responding to climate change and who has power over the decision-making process

2³+√25*3-4²:√4 it math

What is the name of a city that is located at 39 degrees north and 75 degrees south?