CHALLENGE (Day 5) Directions: The following are examples of the effect of human activities fill up the missing letter to know the ways to lessen them. 1. Pile of garbage Recycling 2. Greenhouse Effect LNT_GT_S Air Pollution BK_N_AND_AL_I_ 4. Thinning of forest REFOI! STALIon 5 Biodegradable waste LOMSTI__