What type of volcano has alternate layers of ash and lava?

Although it's now extinct, what shark is though to have been the largest on Earth?

Most of the oil fields in central asia are located along the

What is the capital of idaho user: whats the biggest river in the united states?

What does oxygen become at high altitudes in the atmosphere?

What two pieces of information would researchers need to have in order to calculate the rate of plate motion for seafloor spreading?

What river shares a name with two African countries?

Most metallic ores are produced by which two types of processes? metamorphic and sedimentary igneous and metamorphic igneous and sedimentary cementation and compaction

Match the ecosystem to its description or example. 1. Desert receives less than ten inches of rain annually 2. Forest much of this ecosystem has been converted to farms 3. Grassland estuaries, coral reefs 4. Tundra world's largest ecosystem 5.

Not all migrants to the new land chose to come due to religious, political, or economic reasons. some are?

What is the disadvantages of the formal sector