Which of the following is a use of bacteria? a. preventing decomposition c. decomposing materials b. breaking down insulin d. carbon production

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?

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The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth