Earth's age is best estimated by: A. chronologies developed using biblical sources B. best guess C. using fossils D. using radioactive isotope pairs to date the oldest rocks.

What is the fastest recorded wind speed on earth?

Travelers along the oregon trail faced many hardships due to both terrain and weather condictions that were unpredicatable and thus hazardous. t f

Which plants were not common during the mesozoic era? a. gingkoes b. conifers c. orchids d. cycads

What caused the himalayas to form?

What is the distinctive type of agriculture practiced in the population concentrations of East and South Asia, and how does this relate to concerns over the world's growing population and environmental problems?

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?

Pause the time when the Moon has risen, then click the Moon to display its data in the upper left. What time is it when the Moon is fully visible (complete disc) on the eastern horizon?

What is the only south america country lying completely south of the tropic of capricorn?

What statement is true about earth's tectonic plates? a) they are floating on the lithosphere. b) they are floating on the asthenosphere. c) they are stable and do not move. d) they are floating on the core.