if something receives sunlight, it will decrease in hanging
cooling_process is decrease. moonlight is sunlight_reflected_off_of_moon. dwindling is decrease. light_bulb is hollow_thing. leaves is green_because_absorb_red_light. hanging is putting. blocked_sunlight has powerful_effect_on_microclimate pollution_abatement is decrease. if dust occurs then remove occurs. if_air_dry_then has low_humidity