7 Select the correct location on the image.
Identify the magnetic north pole of Earth's magnet.
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Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

What causes most sediment to wash or fall into a river

What is the name of the enzyme that forms at the start of transcription?