Suppose you look at a star that can be seen through the edge of a dusty interstellar cloud. The star will look ________ than it would if it were outside the cloud.
A) dimmer and redder
B) dimmer and bluer
C) more redshifted
D) brighter and redder
A) dimmer and redder
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When heat and pressure are applied to an igneous rock it turns into
A) another sedimentary rock B) an igneous rock C) a meteorite D) a metamorphic rock
John and Linda are arguing about the definition of density. John says the density of an object is proportional to its mass. Linda says the object's mass is proportional to its density and to its volume. Which one, if either, is correct?
a. They are both wrong. b. John is correct, but Linda is wrong. c. John is wrong, but Linda is correct. d. They are both correct. e. They are free to redefine density as they wish.
When decoupling occurred ________ formed
Fill in the blank(s) with correct word
Which of the following correctly describes the meaning of albedo?
A) The lower the albedo, the more light the surface reflects, and the less it absorbs. B) The higher the albedo, the more light the surface reflects, and the less it absorbs. C) The higher the albedo, the more light the surface absorbs. D) The higher the albedo, the more light the surface emits. E) The higher the albedo, the more light the atmosphere absorbs.