The continental crust is primarily comprised of all the following except:

a. granite-type rock.
b. basalt-type rock.
c. quarts-type rock.
d. silicon-type rock.
e. sedimentary rock.


B

Biology & Microbiology

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Clostridium tetani, the bacterium that causes tetanus, can only survive in soil away from oxygen. It is considered which of the following?

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Which of the following statements is false?

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what mineral deficiency can lead to irregular heart beat, paralysis, death

What will be an ideal response?

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