a: groundwater ~
b: dark matter
What:
"Groundwater is like dark matter - we know very little apart from the fact that it is hugely important."
Useful?
Writer:
LCC:
Where:
Date: Mar 31 2016 5:38 PM
# 9698 Critique Analogy
"Groundwater is like dark matter - we know very little apart from the fact that it is hugely important."