A permeable layer that transports water is called a(n) ____________________. (Fill in the blank)

A permeable layer that transports water is called a(n) ____________________.
 Fill in the blank(s) with correct word

Question 2

Nearly all remaining active volcanoes ____.
 A)are at or near mid-oceanic ridges or the extensions of these ridges onto land
 B)erupt approximately every 2,000 years
 C)form pyroclastic sheet deposits
 D)produce supervolcano eruptions
 E)are located on the Eurasian plate

Question 3

Terranes and microplates were part of the formation of Pangaea.
  Indicate whether the statement is true or false

Question 4

The water stored in the open spaces within underground rocks and unconsolidated material is called ____________________.
 Fill in the blank(s) with correct word

Question 5

What are the criteria used by geologists to give a semiquantitative measure of the size of an eruption?
 A)number of deaths caused by the eruption and the number of buildings destroyed
 B)volume of material erupted and height of the eruption plume
 C)size of the pre-erupted volcano and the type
 D)temperature and pressure during eruption
 E)sizes of pyroclastic materials ejected and the distances they travel from the volcano

Question 6

The Taconic, Caledonian, and Acadian orogenies were all part of the same major orogenic event related to the closing of the Iapetus Ocean.
  Indicate whether the statement is true or false

Question 7

Which statement about arsenic is false?
 A)It is odorless and tasteless.
 B)It contaminates groundwater via natural processes.
 C)It harms the nervous system and may cause birth defects.
 D)Reducing the amount of arsenic in water will increase the cost of water.
 E)Arsenic concentrations are uniform across the U.S.