Table of Contents
What affects chemical composition of seawater?
The chemical composition of seawater is influenced by a wide variety of chemical transport mechanisms. Rivers add dissolved and particulate chemicals to the oceanic margins. Physical mixing in the oceans (thermohaline and wind-driven circulation) tends to homogenize the chemical composition of seawater.
What are 2 factors that can affect chemical composition of seawater?
Temperature, salinity and pressure affect the density of seawater.
What would happen to the composition of ocean water if these animals were to decrease drastically in number?
What would happen to the composition of ocean water if these animals were to decrease drastically in number? salts in ocean water would increase.
How does the ocean impact animals?
Species Are in Danger Due to Rising Sea Levels Melting ice increases the depth of the ocean, affecting species like coral that rely on shallow water for photosynthesis. Seagrass, which serves as a food source for crustaceans, sea urchins, manatees, and other marine life, also relies on photosynthesis to survive.
What kind of reactions are happening that affect ocean chemistry?
The Chemistry When carbon dioxide (CO2) is absorbed by seawater, chemical reactions occur that reduce seawater pH, carbonate ion concentration, and saturation states of biologically important calcium carbonate minerals. These chemical reactions are termed “ocean acidification” or “OA” for short.
What is the chemical formula of ocean water?
The chemical composition of sea water is relatively simple to interpret – it’s H2O with a few extras. If you collect a sample of ocean water and take it to the laboratory, a chemist will quickly identify six major ions.
What are the factors that influence the ocean chemistry?
Ocean chemistry, also known as marine chemistry, is influenced by plate tectonics and seafloor spreading, turbidity currents, sediments, pH levels, atmospheric constituents, metamorphic activity, and ecology.
Why do you think fishes and sea water animals have not gone dead or dehydrated due to salinity or salt content of the sea water?
Saltwater fish can’t survive in freshwater because their bodies are highly concentrated of salt solution (too much for freshwater). The water would flow into their body until all their cells accumulate so much water that they bloat and die eventually.
How does ocean pollution affect sea animals?
It is estimated that up to 13 million metric tons of plastic ends up in the ocean each year—the equivalent of a rubbish or garbage truck load’s worth every minute. Fish, seabirds, sea turtles, and marine mammals can become entangled in or ingest plastic debris, causing suffocation, starvation, and drowning.
How does ocean acidification affect animals?
Ocean acidification can negatively affect marine life, causing organisms’ shells and skeletons made from calcium carbonate to dissolve. Animals that produce calcium carbonate structures have to spend extra energy either repairing their damaged shells or thickening them to survive.
What does Chemical Oceanography have to do with?
Chemical oceanography has to do with the composition of seawater and the biogeochemical cycles that affect it. Marine geology focuses on the structure, features, and evolution of the ocean basins.
What makes up the chemical composition of seawater?
Approximately 3.5 percent of seawater is composed of dissolved compounds, while the other 96.5 percent is pure water. The chemical composition of seawater reflects such processes as erosion of rock and sediments, volcanic activity, gas exchange with the atmosphere, the metabolic and breakdown products of organisms, and rain.
How does the chemical composition of the atmosphere affect the ocean?
The chemical composition of the atmosphere also affects that of the ocean. For example, carbon dioxide is absorbed by the ocean and oxygen is released to the atmosphere through the activities of marine plants.
How does the salinity of the ocean affect marine organisms?
Variations occur in ocean salinity. Many marine organisms are highly affected by changes in salinity. This is because of a process called osmosis which is the ability of water to move in and out of living cells, in response to a concentration of a dissolved material, until an equilibrium is reached.