Monday, September 24, 2007

Case studdy pg 251 text book

1
a) the sea water is mixing in with the river water making the river salty.
b) the world is having hotter days than ever before, because of global waring the rivers are going up in temperature.
c) it is raining less so there is little water coming down from the hills to fill up the rivers.
d) the river is flowing slower than before so it makes it easier for the algal blooms to grow. and there are more dead animals in the rivers and this makes the rivers an ideal place for the algal to grow.
e) there isnt as many plants around the rivers so the creeks are slowly siltering up.

2) the fish would have struggled to brethe with all the dirty water that they swim in. it would get into their gills and suffercate them.
b) i would cut up the dead fish and find out what is in their gills that is killing them. this will help me to find out what happened to the fish.

By jacob