Answer to Question 1
Answer: Gneissic rocks undergo partial melting, which melts quartz and feldspar crystals and leaves biotite and amphibole behind. When the rock cools, light bands in the rock will be composed of igneous materials, and dark bands will consist of unmelted metamorphic material. They are not easily placed in any of the three rock groups because they represent a transitional stage, containing both igneous crystals and metamorphic crystals.
Answer to Question 2
Answer: A large, fast-moving body such as a meteorite will impact the Earth at a high velocity, quickly creating a high-pressure, high-temperature environment. The energy of the impact will be transformed into heat energy and shock waves, pulverizing and melting the rock.
Parenteral medication administration. The angle of needle insertion for four different types of pare
Types of bariatric surgery; A, laparoscopic adjustable gastric banding; B, Roux-en-Y gastric bypass.
A typical beginning technician tool set that includes the basic tools to get started.
Three Types of Neurons
Micrographs and drawings of three types of simple epithelia, with examples of their functions and lo