Metals are not a primary component of crude oil, but they can be present in trace amounts.

Oil spills can cause harm to marine life through direct toxicity, habitat destruction, and food chain contamination.

Deepwater spills are considered to be the most damaging because they are difficult to clean up and can cause long-term damage to marine ecosystems.

Skimming is the primary method used to clean up oil spills because it is the most effective way to remove oil from the water's surface.

The severity of an oil spill is determined by a combination of factors, including the volume of oil spilled, the type of oil spilled, the location of the spill, and the weather conditions.

Enhanced productivity is not a potential long-term impact of oil spills on marine ecosystems.

The primary goal of oil spill response efforts is to minimize the environmental impact of the spill, protect human health and safety, and recover the spilled oil.

Improved cognitive function is not a potential consequence of oil spills on human health.

All of the above are challenges associated with cleaning up oil spills in deep water.

Enhanced nutrient cycling is not a potential impact of oil spills on coastal ecosystems.

Oil spills can contaminate the food chain through direct ingestion of oil by marine organisms, bioaccumulation of oil-derived toxins, and habitat destruction.

Improved foraging efficiency is not a potential impact of oil spills on marine mammals.

The persistence of oil in the marine environment is determined by a combination of factors, including the type of oil spilled, the water temperature, and the wave energy.

Enhanced swimming ability is not a potential impact of oil spills on seabirds.

The primary goal of oil spill prevention efforts is to reduce the likelihood of oil spills occurring, minimize the environmental impact of oil spills, and protect human health and safety.