In Many Aquatic Habitats, the Growth of Algae and Cyanobacteria

question 58

Multiple Choice

In many aquatic habitats, the growth of algae and cyanobacteria is limited by the amount of

• A) nitrogen.
• B) phosphorus.
• C) calcium.
• D) sulfur.
• E) nitrites.

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Definitions:

Syncline

A fold in rock layers where the youngest layers are closer to the center of the structure, typically shaped like a trough.

Limestone

A sedimentary rock composed primarily of calcium carbonate (CaCO3) in the form of the mineral calcite, often formed from the skeletal fragments of marine organisms.

Sandstone

A sedimentary rock composed mostly of sand-sized minerals or rock grains.

Shales

Fine-grained sedimentary rocks formed from silt and clay particles, known for their ability to split into thin layers.