Why do scientist believe is happening to the segments of earths crust which are called plates

Which of the following statements accurately compares the population profiles of groups aged 19 and younger with thoses aged 20 or older?

The subdivision of the geologic time scale that represents the longest time span is called a

What is the expulsion of ash, cinders, bombs, and gases during an explosive volcanic eruption? Explosive flow. Quiet flow. Pyroclastic flow. Extrusive flow.

What is Mars made up of?

What is a functional region? a.-an area with at least one characteristic that distinguishes it from other areas b.-a region that is defined by individual human perceptions and feelings c.

The number of elected officials who are African Americans a) has risen dramatically at all levels of government b) has grown at local and state levels, but not federal c) has been shrinking since 1990 d) Grew after 1964 until about 1990 and then

The Richter scale a) works well for very large earthquakes. b) measures the size of an earthquake in terms of the damage it does (its intensity). c) is today termed a local magnitude (ML) reading.

What problem does russia have with building shipyards in the north

Which of the following important physical features is not located on Antarctica? A. Lake Vostok B. Mt. Cook C. Mt. Erebus D. Vinson Massif

What does these coordinates go to? 40.720059,-89,273147