Most intraplate volcanic activity occurs where
a. mantle plumes rise toward the surface within a plate.
b. oceanic plates diverge.
c. hot magma descends into the mantle under a plate.
d. oceanic and continental plates converge.

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

Hurry on the map above, arrow 1 points to a region where most people are

Read the article titled "castro resigns." why did the us impose trade sanctions against cuba in 1962?