- 1. Marine chemistry is the study of the chemical composition, reactions, and processes that occur in the oceans and other bodies of water. It involves understanding the complex interactions between various chemical compounds, elements, and organisms in marine environments. Marine chemists investigate the sources, transport, and transformations of chemicals in the ocean, as well as their impact on marine ecosystems and climate. By studying marine chemistry, scientists can gain insight into the health of our oceans, the effectiveness of environmental policies, and the overall state of the planet's biosphere.
Which process is responsible for the formation of salt in seawater?
A) Evaporation
B) Precipitation
C) Sublimation
D) Condensation
- 2. What causes ocean acidification?
A) Increased CO2 absorption
B) Decreased CO2 absorption
C) Alkaline runoff
D) Regular ocean currents
- 3. Which gas contributes to the greenhouse effect in the atmosphere and ocean?
A) Carbon Dioxide
B) Oxygen
C) Nitrogen
D) Methane
- 4. What is the primary building block of coral reefs?
A) Potassium Chloride
B) Calcium Carbonate
C) Sulfur
D) Magnesium Oxide
- 5. Which phenomenon refers to the large-scale movement of water in the ocean caused by wind, temperature, and Earth's rotation?
A) Tsunamis
B) Whirlpools
C) Ocean currents
D) Tidal waves
- 6. What is the name for the zone in the ocean where light penetration is minimal?
A) Disphotic zone
B) Aphotic zone
C) Euphotic zone
D) Mesophotic zone
- 7. What is the chemical formula for seawater?
A) H2O + CO2
B) NaCl + CO2
C) HCl + NaOH
D) H2O + NaCl
- 8. Which nutrient is often a limiting factor for primary production in the ocean?
A) Iron
B) Nitrogen
C) Phosphorus
D) Calcium
- 9. What process is responsible for converting nitrate and nitrite to nitrogen gas in the ocean?
A) Denitrification
B) Nitrogen fixation
C) Photosynthesis
D) Nitrification
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