Complete the following statements on which elements of BACI can be applied to each of example:

• Today a chemical spilled into a major river and a program must be immediately started to clean up the river. However, there is no existing data on the river water quality.

• A large plantation forest is being planned and there is concern about its impact on a nearby river. Currently the entire region is used for grazing sheep and only a subset of the area will be converted to plantation. Also, the plantation will only commence

  in 10 years.

• A large new dam is proposed for Melbourne to assist with water security.  However there is concern that the dam will not improve the water security of the population. Hence the change in the water usage needs to be assessed. Note, there are no other similar catchments nearby.