How do mafic igneous rocks compare to felsic igneous
rocks?
A. Mafic igneous rocks are less dense than
felsic igneous rocks.
B. Mafic igenous rocks are more dense
than felsic igneous rocks.
C. Mafic igneous rocks always have a very
rough texture.
D. Mafic igneous rocks always have a
course-grained appearance.
No

Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks