Puzzle 3

Study of environment

Brothers who invented vertical lift-off helicopter

Enemy of the Allies in WWI: the __ Powers

A suspension of particles, such as an emulsion

Often mistaken for llamas

__ Hesse, German-born Swiss writer

__ Sq, New Orleans, site of an equestrian statue

Congo River tributary near Lake Albert

Dave Eggers book set during Hurricane Katrina

What Have I Done to __ This? Pet Shop Boys hit

Sidney __, who starred in To Sir, With Love

The capping horizontal stones at Stonehenge

Programme of physical exercises or classes