Family, schools, mosques, and communities all play important roles in population education. Schools and families should work together to promote student health, development, and social responsibility. Mosques serve as important educational and community centers, traditionally teaching the Qur'an and hadith. Effective population education planning involves pre-planning, formulating plans, elaborating plans for implementation, and evaluating outcomes. Planning can occur at both the macro national level and micro local level using individual, family, or group-based approaches. Pollution comes in many forms including air, water, soil, noise, radioactive, thermal, light, and visual pollution, and degrades the environment.