The nucleus of an atom has what electric charge?

Positive charge

Explanation:

An atom consists of electron (negatively charged), Proton (Positively charged) and neutron (no charge).

The proton (+) and the neutron (no charge) are in the nucleus of the atom. this makes the resulting charge of the nucleus positive while electron (-) is outside the nucleus.  

yes, water is wet, just as it makes other things wet, it is wet itself, kinda like ice, when ice is in water, the ice makes water cold, and ice is cold, therefore with that example, water is wet

answer; i believe that the correct answer is (c) explore the outer planets; / plz check good luck