The diagram shows several rock layers in an area. A scientist claims that an intrusion of magma (layer Y) formed scientists claim?
A. Layer Y is partly covered by Layer X.
B. Layer X crosses over Layers W, Z, and Y.
OC. Layer Y is larger in area than rock Layer Z.
D. Layer Z is parallel to Layer X, which was depostied before Layer Y,

When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.

Compare and contrast physical changes with chemical changes.

Which of the following are correct values for the ideal gas laws constant r