In what way were artists of the northern renaissance different from the artists of the italian renaissance

The correct option is:

They primarily painted their works using oil paint.

During the Italian Renaissance, some remarkable egg tempera paintings and frescoes were produced. The northern renaissance didn't present that kind of frescoes because the climate wasn't appropriate to cure them. That´s why the north developed the chemistry of oil paints, so artists could have a medium that would dry and last.

the law supported victims of political persecution.

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