Plate tectonics is the theory that says the earth's crust is:

A. spread across 12 land masses

B. melting like hot molten lava

C. broken into pieces

D. freezing over time

The geologic time scale was first developed by William Smith and Charles Lyell, who recognized that rock strata represent successive time periods in geologic history. True False

The whole world is covered with

Select the correct answer The function of tochondria and chloroplasts is related to energy in what way does the function differ?

Porque se dise que mexico es un pais megadiverso

Compare the reasons why the Cold War created conflict in Eastern Europe. Which reason best summarizes the main cause? The countries lacked a central government. The newly formed countries had to create new policies.

What do stream terraces represent? Put another way, what were stream terraces before they became a terrace?

The American Revolution inspired the French Revolution. True False

Identify and explain three past or current consequences of the Partitioning of India in 1947.

Why is the black earth region in Russia called Black Earth?

The US counties that border Mexico have an unusually high percentage of people in which age group? A. 0-17 B. 18-39 C. 40-59 D. 60-79