2. digging down from the surface, you find (from top to bottom) unsaturated sand, saturated sand, saturated clay, and saturated gravel. based on the hydraulic conductivities, it is reasonable to assume that these form an unconfined aquifer, a confining layer, and a confined aquifer.
group of answer choices

true

false

15 points need quick 1. looking at your graph and the geologic time scale during what period did this rock form? what is the age span of the rock, in millions of years? 2. this rock sample is limestone and shale. with what you know about rock formation, what type of environment did these organisms live in? 3. if some of these fossil samples were found in a rock also containing leaf fossils, could you use radiocarbon dating to determine the age of this rock? explain.

Select all that apply the earth orbits the sun because a. the earth is in motion therefore stays in motion b. the suns gravity pulls the earth in a curved path c. a contact force is pushing the earth

In the middle east, a blank is a dry riverbed that often fills briefly with water after strong rains