3. In 1972 and 2002, Canada and the U. S. agreed to take action regarding what kind of pollution? acid rain Canadian Shield pollution deforestation Great Lakes pollution

Why do earthquakes occur only above the brittle/plastic transition depth?

The impacts of large asteroids on earth are inferred to be associated with 1) Free oxygen entering Earth's atmosphere 2) Seafloor spreading 3) The creation of subduction zones 4) Global climatic changes

Which attribute measurement operation can be applied to all of the levels of data measurement? average; isolate; difference; classification

How was Hawaii formed? What made Hawaii? Why does it have so many volcanoes? Why do geologists and scientists say that if they knew how Hawaii was formed then they would know more details about how Earth was formed?

Greatest common factor of 65 and 75

Match it term to its correct definition. Superposition Cross-cutting relationships Unconformities Original horizontality A. the oldest is on the bottom, the youngest on top. B. faults, fractures are younger than the rocks they cut through. C.

What system has groups of such as Brahmins and Dalits (Untouchables) a) India's Classes b) Japan's Feudalism c) European Feudalism d) India's Castes

What are some reasons to consider San Francisco and Los Angeles as located in separate regions? A. National boundaries B. Radio and television station markets c. Language D. Climate

Earliest civilizations began on what continent?

1. What is the area, in square yards, of a rectangular field that is 25 yards long and 20 yards wide? A. 500 B. 625 C. 1,500 D. 3,600 E, 4,500