If you could dig one foot per minute, it would take you about six __ to dig through the Earth's crust.

The fossil remains of organisms with skeletons are not found in the lowest layers of rock discovered. How is the lack of fossilized skeletons in the lowest rock layers best explained?

The physical structure of the earths rock is changed by what

Mt. Vesuvius erupted in a very violent explosion in 79 C. E. and buried the residents of Pompeii in ash. On the basis of this information, which of the following would you LEAST expect to find at Vesuvius? A. basaltic lava B. lapilli (cinders) C.

In which country the legendary william tell is associate

What is the number of species present in an ecological community known as?

There have been several instances in the last 150 years when valuable materials such as diamonds have been found contained in glacial debris.

Which item is not a factor in population growth? birth rate death rate migration tariff reduction

Which of the following regions is located 23.5° north and south of the equator? a. the tropics b. the equinoxes c. the circle of capricorn d. the solstices

Which are renewable energy resources? A: biomass B:fossil fuels C: geothermal D: hydroelectric E:petroleum F: solar G: wind There are multiple answers

Examine the Egyptian policy of hereditary rule. In what ways do you think that this system for transfer of power is beneficial? What problems do you see with this type of governmental process?