1. Pollution - tolerance value is 6 ( on scale 0 -- 10 ; 0 the best water quality , 10 is the worst water quality ) .
2. The pollution tolerance value is 6 ( on the 0 - - 10 ; 0 scale the worst water quality , 10 is the best water quality ) .
OPTIONS:
- no
- yes

no

1. In 1989 , London joined the Peace Corps in Africa and organized a regional business development program in Malawi .
2. In 1989 , London joined the Peace Corps in Malawi and co-managed a regional business development program in Africa .
OPTIONS:
- no
- yes

no

1. Religious Institute -- '' a society in which members ... take off public vows ... and lead a common life of brothers or sisters '' .
2. Religious Institute -- '' a society in which members ... pronounce common vows ... and lead a life of brothers or sisters in the public '' .
OPTIONS:
- no
- yes
no