Unique Nature of Pure Water
Physical Properties of Sea Water
Chemical Properties of Sea Water
Ocean Acidification
Carbon Cycle
100

What is the state of matter of pure water at room temperature?


What is liquid?


100

What is the general color of the ocean due to water absorption?


What is blue?


100

What is the most abundant dissolved ion in seawater?


What is chloride?


100

What gas is primarily responsible for ocean acidification?


What is carbon dioxide?


100

What is the primary reservoir of carbon on Earth?


What is the oceans?


200

What property of water allows it to resist temperature changes?


What is high specific heat?


200

What term describes the measure of saltiness in seawater?


What is salinity?


200

What is the second most abundant ion in seawater?


What is sodium?


200

What happens to the pH of seawater as more CO₂ dissolves?


What is it decreases (becomes more acidic)?


200

What process moves carbon from the atmosphere into plants and algae?


What is photosynthesis?


300

What type of bond holds the hydrogen and oxygen atoms together in a water molecule?


What is a covalent bond?


300

How does increasing salinity affect the density of seawater?


What is it increases density?


300

What term describes the ability of seawater to neutralize acids or bases?


What is alkalinity?


300

What is the chemical compound formed when CO₂ reacts with water in the ocean?


What is carbonic acid?


300

What process releases carbon back into the atmosphere from living organisms?


What is respiration?


400

What intermolecular force in water is responsible for its high surface tension?


What are hydrogen bonds?


400

What happens to the freezing point of seawater as salinity increases?


What is it lowers the freezing point?


400

What two ions mainly contribute to the buffering capacity of seawater?


What are bicarbonate and carbonate?


400

How does ocean acidification affect calcium carbonate shells of marine organisms?


What is it makes them dissolve or harder to form?


400

What term describes carbon that is stored in the ocean for long periods in deep water?


What is dissolved inorganic carbon or the oceanic carbon sink?



500

How does the structure of water molecules contribute to its ability to dissolve many substances?


What is polarity, allowing water to be a universal solvent?


500

What two factors primarily control the buoyancy of objects in the ocean?


What are temperature and salinity?


500

How does temperature affect the solubility of gases like oxygen and carbon dioxide in seawater?


What is solubility decreases as temperature increases?


500

What is the long-term consequence of ocean acidification on coral reefs and marine ecosystems?


What is weakening of coral reefs and disruption of marine food webs?


500

How do human activities accelerate the carbon cycle compared to natural processes?


What is by burning fossil fuels and increasing CO₂ emissions?


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