The border between the State of Oregon and the State of California is on the 42 degrees latitude exactly (Latitude/Longitude was invented in the 3rd Century B. C). This is an example of what type of boundary?

How do the various countries in east asia meet their power needs? give specific examples

Match the following items. 1 1 (4,4) 2. (-4,-2) 3. (3.-6) 4. (-4, 6) 5. (1,5)

Why is the huronian supergroup rock formation particularly interesting to scientists? because it looks like a cross-section of a giant, stone encyclopedia because it formed during the period when oxygen began to accumulate in the atmosphere because it contains unusually large amounts of oxygen and sulfur because it dramatically altered the planet's development when it first formed