Hydrogen (Element 1): which best describes its role in Earth's water or air?

Constituent of water (H in H2O)

Primary dissolved metal ion in seawater

Helium (Element 2): which best describes its role in Earth's water or air?

Noble trace gas present in the atmosphere

Forms carbonate ions in seawater

Reacts to form hydrogen fluoride in water

Lithium (Element 3): which best describes its role in Earth's water or air?

Common constituent of atmospheric CO2

Trace dissolved ion in seawater and continental waters

Primary structural component of water molecules

Beryllium (Element 4): which best describes its role in Earth's water or air?

Forms the bulk of dissolved salts in seawater

Present only in trace amounts; no major role in air or water

Primary form of dissolved carbon in oceans

Boron (Element 5): which best describes its role in Earth's water or air?

Trace element in seawater, often as borate

Constituent of molecular oxygen (O2)

Primary anion controlling ocean salinity

Carbon (Element 6): which best describes its role in Earth's water or air?

Major component of the atmosphere as N2

Occurs as CO2 in air and as dissolved inorganic carbon (bicarbonate/CO2) in water

Noble gas trace in the atmosphere

Nitrogen (Element 7): which best describes its role in Earth's water or air?

Constituent of the water molecule (H in H2O)

Primary dissolved salt anion in oceans

Oxygen (Element 8): which best describes its role in Earth's water or air?

Present only as a trace pollutant

Major component of the atmosphere as O2 and constituent of water (O in H2O)

Forms neon compounds dissolved in seawater

Primary dissolved metal cation in freshwater

Fluorine (Element 9): which best describes its role in Earth's water or air?

Major gas in the atmosphere as F2

Common constituent of seawater as a major anion

Occurs mainly as trace fluoride in natural waters

Primary form of dissolved organic carbon

Neon (Element 10): which best describes its role in Earth's water or air?

Noble inert trace gas present in the atmosphere

Reacts with water to form neon hydroxide

Common dissolved nutrient in seawater

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Trivia · Knowledge

Element Roles in Air and Water: Elements 1–10

For each of the first ten elements, choose the best description of its major role (if any) in Earth's air or water.0 takes

by @triviagang_dataUpdated 2d ago

Preview · 10 questions

01Hydrogen (Element 1): which best describes its role in Earth's water or air?
02Helium (Element 2): which best describes its role in Earth's water or air?
03Lithium (Element 3): which best describes its role in Earth's water or air?
04Beryllium (Element 4): which best describes its role in Earth's water or air?
05Boron (Element 5): which best describes its role in Earth's water or air?
06Carbon (Element 6): which best describes its role in Earth's water or air?
07Nitrogen (Element 7): which best describes its role in Earth's water or air?
08Oxygen (Element 8): which best describes its role in Earth's water or air?
09Fluorine (Element 9): which best describes its role in Earth's water or air?
10Neon (Element 10): which best describes its role in Earth's water or air?

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