What happened around 800 million years after Earth formed to allow rocks to

form?

O

A. Life began to appear.

O

B. The sun dimmed considerably.

D

C. Earth cooled sufficiently.

D. The ozone layer formed.

Three differences between oceanic crust and continental crust

Which city has the largest population in the world?

Given your knowledge of the general climate patterns for these two regions of the country from lab 1 (northeast and southwest), how would you characterize the differences in precipitation and temperature between Mink Brook, NH and Walnut Gulch, AZ

What was the geography of Aztec Society?

Draw the Earth as a large bar magnet and the magnetic field lines emanating from the Earth. Show the current polarity of the Earth. Is it normal or reverse polarity?

How can something as massive as the Pacific Plate move?

Describe the difference between surface water and groundwater. (Own words)

1. According to the lecture, we are currently in an ice age and have been for the last 2.8 million years. a. True b. False 2. According to the lecture, we are within an interglacial period today. a. True b. False 3.

Who is Nathaniel Greene

What is the difference between intensive farming and extensive farming?