ECOLOGY REVIEW

Sulfur enters marine ecosystems through atmospheric fallout, runoff from land, and underwater geothermal vents.

The main environmental impact of sulfur dioxide in the atmosphere is acid rain.

An organism that can make its own food is called an autotroph or producer.

Phosphorus primarily enters terrestrial ecosystems through the soil.

A close and permanent relationship between two different species is called symbiosis.

An autotroph is an organism that produces its own food from inorganic substances.

A heterotroph is an organism that cannot produce its own food and relies on other organisms for nutrition.

Decomposers break down dead organic matter, recycling nutrients back into the ecosystem.

Eutrophication is the process by which water bodies become overly enriched with nutrients, leading to excessive growth of algae.

The greenhouse effect is the warming of Earth's surface due to the trapping of heat by greenhouse gases in the atmosphere.