What 3 processes have scientists proposed to explain how tectonic plates move?

How are galaxies important to our existence? A) Without galaxies, there could not have been a Big Bang. B) Without galaxies, the universe could not be expanding. C) Galaxies prevent planets from leaving their orbits around stars; e. g.

How many times greater than is the population of the united states is india's?

Broad areas of grassland with few trees are called

This city is the largest in the state. Pittsburgh Erie Philadelphia Scranton

What does it mean when something has a high ph level? low ph level?

Arid climates occur in both warm and cold settings and collectively form the largest climate region on the planet. The spatial distribution of these dry regions can be impacted by several factors.

Which of the following Rivers is unique because it is home to more species of large fish than any other River? A. The Huang He River B. The Yangtze River C. The Han River D. The Naktong River

The area just north of Lake Baikal is called?

When the Europeans traveled the Mississippi and the Amazon rivers, what did they bring to the native peoples of both continents? A. Gifts and wisdom B. Exotic plants and animals C. Smallpox and other disease D. Technology and knowledge

What are the major controlling factors for the variations of the water mass in the ocean?