Approximately how far above the bottom of the palisades sill is the coarse diabase region found?
(1) 50 ft (3) 800 ft
(2) 400 ft (4) 950 ft

Approximately 800 ft above the bottom of the Palisades sill is the coarse diabase region found. The correct option among all the options that are given in the question is the third option or option "3". Palisades sill actually extends from portions of New Jersey and New York. I hope the answer comes to your help.

C. naturally in the environment

The sun's parallax would be 180 degrees, greater than which you can't get.  so a. would be your anwser