Page 195 - BV-BC 4 days
P. 195
The stone is Why?
crumbling
Frequent Why? “Five Whys” for the
washing Jefferson Memorial
Too many birds Why?
and droppings
Too many spiders, Why?
which attract birds
Too many midges, Why?
which attract spiders
Root Lights are turned on at Problem Delay turning on lights until
Cause the same time the Solution one hour after dusk. Midge
midges emerge to mate population down 90%.
at dusk.
