........ a serious threat to
POSE a serious threat to
........... in popularity
GAIN in popularity
environmental ............
environmental DEGRADATION / DETERIORATION
What's a synonym of 'polluted'?
contaminated
spread .......... diseases.
spread INFECTIOUS diseases
........... responsible behaviours
PROMOTE responsible behaviour
............ people's awareness
HEIGHTEN people's awareness
the ........ of natural habitats
the LOSS of natural habitats
what's the synonym of "quiet"
TRANQUIL / TRANQUILITY
what's the synonym of "old"
RUN-DOWN
........... (make worse) traffic congestion
AGGRAVATE traffic congestions
........... landscapes
PRISTINE / UNSPOILT landscapes
............ ......... on local resources
PUT PRESSURE on local resources
a rise in the ......... ......... .........
a rise in the COST OF LIVING
synonym of 'health'
WELLBEING
