What is the answer for 7th grade science

Which statements are true about electrolysis? check all that apply. electrolysis requires an acid be present. electrolysis is described by two half-reactions. electrolysis is not an industrial process. electrolysis results in commercially valuable products. electrolysis involves the transfer of electrons. reduction results in the loss of electrons. oxidation results in the loss of electrons.

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

The minerals found in bones are deposited by living cells called