Gravity is a force that a. always attracts b. always repels C. can act only over short distances d. sometimes attracts, sometimes repels​

The correct choice is c

Molybdeum(mo)orruthenium (ru)actually, elements with similar chemical properties as technetium would bemn, re, and bh. this is because elements in the same group/family (column) have similar chemical properties. elements in the same period (row) have the same number of energy levels (or shells).

Answer///air resistance,drag;