What determines the length of a geologic time period?

fossil record

material density

meteors and rocks

radioactive materials

Mining companies have technology that can detect rock formations underneath Earth's outer layer. One mining company detects an igneous rock formation underneath Earth's outer layer.

At what type of boundary was the Himalayan mountain range of india form ed

If the internet is the new printing press, then what is democracy for the internet era?

What does the phrase "traditional, ancestral, unceded territory" mean? (Break it down to what each word means, and globally what it all means together).

What experiments did Tuttle and Bowen perform? a. tests of the temperature and pressure conditions required to melt granite and form magma b. tests of the temperature and pressure conditions required to melt basalt and form magma c.

How do volcanoes form at convergent boundaries?

A peninsula is a body of land that is surrounded by water on two sides

Explain the patterns of interregional migration with particular attention to differences between developed and developing countries: A) Rural to Urban: B) Urban to Suburban: C) Urban to Rural:

The two aliens below have offsprings. Will the offsprings inherit a tattoo?

In the study of geomorphology, why do we primarily concentrate on process rather than on distribution patterns by latitude?