Removing one electron from an atom results in the formation of an
a. ion with a 1+ charge.
b. ion with a 1- charge.
c. ion with a 7+ charge.
d. ion with a 7- charge.

Ion with a 1+ charge. The atom would normally be neutral, since it has the same number of electrons as it does protons; removing an electron leaves one more proton than electron. Since protons are positive and there's one more of them than electrons in the new ion, it has a 1+ charge.

North atlantic current or north atlantic drift is the answer

Answer is to avoid experimental error