I have 6 but here they are:
01.) Iron Deficiency
02.) Iodine Deficiency
03.) Vitamin B Deficiency
04.) Vitamin B12 Deficiency
05.) Calcium Deficiency
06.) Vitamin A Deficiency
no I don't have it as I am studying in 5th grade
Three days in to the fertilizatiom go long with 3 or 4 months
The answer is option D "test the effect of cyanide on algae." Ecologist are researchers who study how organisms interact with their environment so in this case they are testing how algae reacts to cyanide. In another example they will be testing how a ape reacts to having a different fruit tree in their habitat. It wouldn't be option A, B, and C because you have to remember the job of a ecologist and the options are not jobs of one.
Hope this helps.