An artificial reef is a man-made, underwater structure.
Artificial reef
Precipitation containing acids that form in the atmosphere when industrial gas emissions and other pollutants combined with water.
Acid rain
Property of being acidic. Substances with the pH value between zero and seven.
Property of being a base. The substances with pH values between seven and 14.
An underground rock formation were water collects.
Substances that pollutes and environment
Solid objects or messes carried by or floating on the surface of moving water.
The removal of sediment from the bottom of the sea or river.
The work place where fish or other marine/aquatic organisms are caught, processed, and sold
Water held beneath the earths surface.
Saltwater ecosystems and organisms.
An area of land where all of the water drains into the same body of water.
The release of oil into the environment; a form of pollution maybe natural or due to human activity.
Oil Spill
Occurs when a fish population is being depleted faster than they can reproduce itself.
Anything capable of causing disease.
Measurement of how acidic or basic a substance is.
Organisms that float in the water in drift with the currents.
Capable of causing injury or death, especially by chemical means.
The following to Earth of any form of water
The process of dragging huge, heavy nets over the sea floor, scooping up everything in their path.

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