How does an atom become a positively charged ion?
A. by gaining one or more electrons
B. by gaining one or more neutrons
C. by losing one or more neutrons
D. by losing one or more electrons

 Your answer would be D.  A neutral atom would become positively charged when they lose electrons because electrons are negatively charged.  Removing some of these negative charges causes the atom to become more positively charged.  Hope this has helped you :D

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?