Long-period comets are believed to come from ______________

a. the Oort cloud
b. interstellar space
c. the asteroid belt
d. the Great Red Spot


a

Physics & Space Science

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Answer the following statement true (T) or false (F)

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The wavelength of a wave multiplied by the frequency of the wave is the wave's __________

Fill in the blank(s) with correct word

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The components of polyester are _________toxic than epoxy.

Fill in the blank(s) with the appropriate word(s).

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Indicate whether the statement is true or false

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