18 Questions
What are the primary sources of phosphate-containing ocean sediments?
Bodies of ocean organisms and their excretions
How can excess phosphorus and nitrogen impact aquatic ecosystems?
Lead to excessive algae growth and depletion of dissolved oxygen
What is the main source of atmospheric sulfur dioxide?
Burning of fossil fuels by humans
In the sulfur cycle, where is sulfur found in the form of sulfur dioxide?
Atmosphere
What process contributes to the death of aquatic organisms like shellfish and fish due to excess nitrogen?
Denitrification
How does phosphorus play a role in living processes?
Formation of proteins
What is a primary way human activity can alter the nitrogen cycle?
Burning biomass for energy production
Which of the following is a potential effect of atmospheric nitrogen on Earth's ecosystems?
Production of nitric acid causing acid rain
What is a major consequence of phosphate runoff from fertilizers in aquatic ecosystems?
Eutrophication resulting in overgrowth of algae
How does phosphorus contribute to the structure of living organisms?
As a major component of nucleic acids and phospholipids
Which process is associated with the overgrowth of algae, depletion of oxygen, and death of aquatic fauna due to nutrient runoff?
Eutrophication
What is a significant source of phosphate runoff into rivers, lakes, and oceans?
Leaching from phosphate-containing rock by weathering
What is the primary source of energy entering ecosystems?
Sunlight
Which element is a key component of nucleic acids and proteins?
Nitrogen
What process is responsible for the leaching of sulfur and phosphorus into water bodies?
Water movement
Which element is critical to the three-dimensional shape of proteins?
Sulfur
In living processes, what is phosphorus primarily used to make?
Phospholipids
What is the main role of nitrogen in organisms?
Protein synthesis
Learn about the movement of phosphate-containing ocean sediments, volcanic ash, and other sources in the phosphorus cycle. Understand how excess phosphorus and nitrogen from fertilizers and sewage impact ecosystems.
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