What is especially worrying about Pfiesteria blooms? A. Conditions are becoming increasingly favourable for their spread B. They are fatal to humans who come in contact with them C.
What is especially worrying about Pfiesteria blooms?
A. Conditions are becoming increasingly favourable for their spread
B. They are fatal to humans who come in contact with them
C. They have devastated the fishing industry in U.S coastal waters
D. Researchers have no idea as to exactly what causes them