The boundary between the zone of aeration and the zone of saturation is known as the ___________________ _.
Fill in the blank(s) with correct word
Question 2
Pyroclastic materials ____.
A)have low viscosity and a ropy texture
B)are rare to absent at great depths in the ocean
C)do not vary in size
D)are always ejected very quickly from volcanoes
E)can only be found at locations where intraplate volcanism occurs
