GEOLOGY

Detailed explanation-1: -If an object gains an electron it will become negatively charged and object which looses an electron, it will become positively charged.

Detailed explanation-2: -Opposite charges attract. A positively charged object has lost electrons. A positively charged object has gained protons. A negatively charged object has lost protons.

Detailed explanation-3: -Explanation: A body that has the same number of positively charged protons and negatively charged electrons is normally neutral. A body will become positively charged when some electrons will come out from the body. Thus, a positive charge is due to the deficiency of electrons.

Detailed explanation-4: -Redox (reduction–oxidation, /ˈrɛdɒks/ RED-oks, /ˈriːdɒks/ REE-doks) is a type of chemical reaction in which the oxidation states of substrate change. Oxidation is the loss of electrons or an increase in the oxidation state, while reduction is the gain of electrons or a decrease in the oxidation state.