Plutonic and volcanic rocks are the two basic types of

a. mafic rocks.

b. igneous rocks.

c. sedimentary rocks.

d. metamorphic rocks.

Where will you find the alps?

Interpret data to determine the oldest rock bed. A sandstone contains a 400-million-year-old fossil. A shale has fossils that are over 500 million years old.

Suppose a new mutation that improves metabolic efficiency is lost from a small population of mammals living in a region of seasonal food scarcity after a hurricane eliminates half the mammal population. This is an example of:

Since color is not a very useful way to identify a mineral, what other optical property or properties can be used? Since color is not a very useful way to identify a mineral, what other optical property or properties can be used?

Explain why the atmosphere is heated chiefly by radiation from the Earth's surface rather by direct solar radiation. The atmosphere is heated chiefly by radiation from the Earth's surface because radiation is absorbed by gas molecules.

11. Which five South Asian cities have the largest populations?

Some 2.5 million people currently live in sahara, most of these in egypt, mauritania, morocco and algeria true or false

Compare the aquatic species mortality on the east and west coast

The political boundaries of North Africa and the Middle East can best be described as the product of which of the following processes? a. Devolutionb. Imperialismc. Self-determinationd. Democratisatione. Supranationalism

What happens when two oceanic plates collide? What negative impacts for human populations can result from this type of action?