The metamorphism of coal to anthracite occurs due to
A) high pressure and high temperature.
B) high temperatures.
C) contact metamorphism.
D) crystallization of organic matter.
Answer: A
You might also like to view...
A horse and rider travel in a region in which the vertical component of the Earth’s magnetic field is 0.035mT, while the horizontal component is 0.022mT. Attached to the horse’s bridle is a metal bit, a cylinder approximately 15cm long, in the horse’s mouth that is oriented horizontally. If the horse is galloping at 15m/s, what is the induced potential difference between the ends of the bit?
A. 79mV B. 93mV C. 50?V D. 93?V E. 50mV F. 79?V
Mercury is larger than Earth's Moon but smaller than Earth
a. True b. False Indicate whether the statement is true or false
The __________ binds quarks together
Fill in the blank(s) with correct word
As a basketball player starts to jump for a rebound, he begins to move upward faster and faster until he leaves the floor. During this time that he is in contact with the floor, the force of the floor on his shoes is:
a. bigger than his weight. b. equal in magnitude and opposite in direction to his weight. c. less than his weight. d. zero.