A
B
C
D
100

/ˈθɜːml/

thermal

100

/draʊt/

drought

100

/səˈplaɪz/

supplies

100

/ˈmembreɪn/

membrane

200

/ˈfaɪnaɪt/

finite

200

/ˈskeəsəti/

scarcity

200

/ˌriːˈjuːz/

reuse

200

/tekˈnɒlədʒiz/

technologies

300

/ˈfɪzɪkl/

physical

300

/səˈsteɪnəbl/

sustainable

300

/ˌdiːˌsælɪˈneɪʃn/

desalination

400

/ɪnˈhɑːnsmənt/

enhancement

400

/ˌiːkəˈnɒmɪk/,   /ˌekəˈnɒmɪk/ 

economic

400

/kɔːz/

cause

500

/ˈbrækɪʃ/

brackish

500

/ˌrekləˈmeɪʃn/

reclamation

500

/ˌmɪtɪˈɡeɪʃn/

mitigation