What is responsible for the red tide phenomenon?
a) The water appears red as a result of reduced levels of photosynthetic pigment.
b) It's a phenomenon that usually coincides with storm surges; the name comes from the red kelp that often washes ashore as a result of rough weather.
c) Red tide occurs in patches of water where certain species of dinoflagellates flourish. They are so abundant that the water becomes discolored and takes on a red hue.
d) Red tides occur once a year and in accordance with the lunar cycle.
C
You might also like to view...
Photovoltaic solar cells work on cloudy days.
Answer the following statement true (T) or false (F)
The red color in red rocks usually indicates the presence of ____
a. magnesium b. carbon c. silica d. fossilized blood e. iron
Australia is composed of relatively old and thick
What will be an ideal response?
When magma intrudes surrounding rock, a piece of the surrounding rock called a(n) _____ may become dislodged and incorporated into the igneous rock as it cools.
A) Xenolith B) Intraclast C) Erratic D) Monolith