Rocks formed by cooling from a molten state are
A) precipitated rocks.
B) igneous rocks.
C) sedimentary rocks.
D) metamorphic rocks.
Answer: B
You might also like to view...
Red giant stars are I. more luminous than the Sun. II. larger in diameter than the Sun. III. cooler than B stars. IV. located above the main-sequence stars in the H-R diagram
a. I & II b. II & IV c. I, II, & IV d. II, III, & IV e. I, II, III, & IV
A 30-year-old woman takes a trip on a rocket, leaving her 20-year-old brother behind. She travels at a speed of 0.8c, and is gone 20 years, according to the younger brother. When she returns, how many years older/younger is she than her brother?
A. 2 years younger B. 2 years older C. 3 years older D. 10 years older E. 8 years older
To pluck a nucleon from a nucleus requires
A) work. B) kinetic energy. C) potential energy. D) none of the above
The power rating of a 400-? resistor is 0.25 W. What is the maximum voltage you can safely connect across its ends?
A) 10 V B) 20 V C) 30 V D) 40 V E) 50 V