1/ Suggest inferences to explain the following observations.

1/
A/ The water in the lake is becoming increasingly saline because the lakes Victoria let sea water flow through its entrance.

B/ The temperature of the water in the lakes system is increasing because soil run off is slitting the water way which make the lake become smaller.

C/ There is very little water entering Lake Victoria. This is especially so during dry weather due to Thompson dam reduces the flow of fresh water that used to flush out the lake system to supply water to Melbourne.

D/ There have been a number of algal blooms in the lake system because the increase of phosphates and the increase of lake temperature.

E/ Some of the creeks that feed into the lake have silted up due the clearing vegetation from the land which cause soil run-off and silting the water way.

2/
a/ These changes kill the fish because the change in the cells have killed their function(breath).

b/ If i were a scietist investigatin the fish kill, i would started by find out what kill the fish, and then i would go to each lake and get a sample of the water and test the level of the chemical that kill the fish. I would start from the lake near the sea and move slowly forward to the top lake because the water flow down from there.
By Ta Thach.