Social studies chalk white icon on dark background. Group of people, flags. Humanities science. Social science learning in schools, universities. Isolated vector chalkboard illustration on black 5921273 Vector Art at Vecteezy
Disabled people help chalk icon. Volunteer responsibility for handicapped. Disability persons assistance. Nursing care. Man carries invalid in wheelch Stock Vector Image & Art - Alamy
Home-bound due to coronavirus, people are chalking hope on sidewalks – Orange County Register