11. What countries bordered the German Empire in 1914?!

Which u. s. state is the smallest in terms of land area?

Radioactive decay of 40K atoms in an igneous rock has resulted in a ratio of 25 percent 40K atoms to 75 percent 40Ar and 40Ca atoms. How many years old is this rock? (1) 0.3 10^9 y (3) 2.6 10^9 y (2) 1.3 10^9 y (4) 3.9 10^9 y

Define time distance decay

Which of the statements below describe the forests of the region? Choose all that apply. Forests cover much of the terrain. Forests increase soil erosion. Forests provide protection from sandstorms. Forests provide timber and fuel for the region.

Which percentage of the United State's population lives in the Midwest? 15% 25% 35% 45%

What does it mean for rocks to be correlated

Why is the Danube important?

Explain the solubility and biological carbon pumps.

In which type of dry climate do you think the fewest people live, and why?

Which bodies of water are in the eastern United States? Choose all answers that are correct. (A) Ohio River (B) Caribbean Sea (C) Great Lakes (D) Pacific Ocean