2. Why were the Van Eycks called the "fathers of oil painting"?

What images are featured on the retangular panels along the sides the image above

Most flexible painting medium, used to create both thin, polished layers and thick, gestural brushstrokes

All but one of the following are pairs of qualities related to the social-emotional environment of an early childhood setting. which is not related to the social-emotional environment of an early childhood setting? a. equity and authenticity b. protection and warmth c. nurturance and continuity d. respect and acceptance