In a newspaper ad, a scientist asks for volunteers to test a new theory on the speed of light by using a machine he invented. How would you know that this is an unreliable newspaper ad

1. Which happened first? a. Settlers rushed to California to find gold. b. The Pony Express was started. c. The train line to California was finished. d. The first telegraph line to California was finished.

What is the solution for feeding 10 billion people?

Water in central texas comes from the edwards aquifer and tends to be hard which of the following would you expect to find in this water

How long does it take earth one full movement

1. for the following rock names need to know the texture, Location of solidification is it plutonic, volcanic or both Basalt Gabbro Granite Obsidian Porphyry Pumice Rhyolite

Greece is known as the birthplace of western

Sovereign nation states are

Which is the largest country? A. French Guiana B. Venezuela C. Suriname D. Guyana

What are 5 features that erosion forms along a river?

What is the capital city of burundi?