Warm-up: Ocean Dynamics

Ocean currents have an affect on which two things

• climate and weather
• temperature and density
• land and sea
• equator and poles

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How does the Ocean benefit the Earth overall? Choose all that apply.

• It regulates the climate

• It acts as a carbon sink

• it provides food and habitat for animals

• It creates the seasons

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The measurement of salinity is

• the amount of salt in the water.

• the amount of chloride in the water.

• the amount of potassium in the water.

• the amount of nutrients in the water.

Why is up-welling important?

• It brings cold water from the bottom of the ocean to the surface
• It brings nutrient rich water from the bottom of the ocean to the surface
• It creates currents in a circular pattern to distribute different temperatures throughout the oceans
• It allows fish to deep sea dive if they need to

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Ocean acidification begins with

• pollution from ships

• carbon dioxide released from combustion/burning fossil fuels

• dumping of waste from cities into the ocean

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Very slight increases in the acidity of seawater __________  marine organisms that make shells.

• doesn't bother
• has no effect on 
• is unhealthy and stresses

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What happens to 1/4 of the greenhouse gases in the atmosphere?

• It is released into space/space is a carbon sink

• It gets absorbed by the ocean/ocean is a carbon sink

According to this slide

• CO₂ is causing marine life to die by "poisoning' the water

• CO₂ is destroying sea shells

• CO₂ is formed from the combustion of Octane

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Oceans are currently threatened by ___________ (choose all that apply).

• overfishing

• cooling water temperatures

• sudden increase in current speed

• microplastic pollution

• coral bleaching

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What is a difference between spring and neap tides?

• Spring tides occur when the earth and sun are IN LINE with the new or full moon. 
• Spring tides occur when moon in 3rd or 1st quarter phases
• Spring tides are LOWER than neap tides
• Spring tides occur in Spring and neap tides can occur in any season

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