Worldwide, fisheries are on the decline due to problems in fishing practices. discuss at least three of these destructive practices, and explain the effect each is having on the marine environment

One is drift netting. These nets are indiscriminate and also catch, injure and kill fishes that are not intended to be caught. This, therefore, greatly affects the marine ecosystem. 

Second is over-fishing. This reduces the fish population to a point where they are unable to regenerate and hence predisposes/ condemning them to extinction   

Third is the destruction of marine ecosystem, deliberately, to clear an obstacle or pave the way for fishing lines. This damages the habits hence affecting the ecosystem from primary producers and up the food chain.

the  different  of  these  two  are  that  they  differently  handle  their  team.

an  expressive  leader  focuses  on  the  task  at  hand  and  make  sures  that  their  goal  is  achieved.  they  accurately  finish  the  task.  an  instrumental  leader  on  the  other  hand  works  on  the  unity  of  the  group,  they  care  more  about  their  employees.  all  the  while  creating  a  good  environment.