A migmatite is a mixed ________ rock.
A. contact and hydrothermal metamorphic
B. metamorphic and sedimentary
C. metamorphic and pyroclastic
D. metamorphic and igneous
E. contact and regional metamorphic
Answer: D
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The Grand Canyon formed due to ____
a. erosion b. Rifting c. a divergent plate boundary d. fault block basin development e. lateral accretion
Describe the steps you would go through to determine the source of an earthquake, provided you had access to three seismographs that recorded the event
What will be an ideal response?
Which of the following is true?
A) B cells are lymphocytes, but T cells are not B) T cells are lymphocytes, but B cells are not. C) Both B cells and T cells are lymphocytes. D) Neither B cells nor T cells are lymphocytes.
?Match the term with the correct description.
A. ?amount of a harmful chemical that a person has ingested, inhaled, or absorbed through the skin at any one time B. ?health damage resulting from exposure to a chemical C. ?a measure of the ability of a substance to cause injury, illness, or death to a living organism D. ?resistance to degradation that allows some chemicals to remain in the body and have long-lasting harmful health effects E. ?certain level of exposure to the chemical that must be reached before any detectable harmful effects occur