What does earth s crust and uppermost mantle form?
a. asthenosphere
b. hydrosphere
c. lithosphere
d. atmosphere

Describe the german immigrants in texas. why did they emigrate from germany to texas? what are some examples of their culture in texas?

Which event had the greatest impact on culture of south america

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