First, the sun’s ____ travels through space and the Earth’s ____. Second, the radiation ____ up the ____. Third, the heat ____ off the Earth, and tries to travel back to ____. Fourth, the large number of ____ ____ trap the heat in the atmosphere. Fifth, the Earth’s ____ start to ____.

Greenhouse Effect and Global Warming

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

استعادة الحفظ التلقائي: ؟