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WorksheetsGeochemistry
Total questions: 10
Worksheet time: 6mins
What are the three most abundant gases in the atmosphere?
Oxygen, carbon dioxide, nitrogen
Carbon dioxide, oxygen, argon
Nitrogen, oxygen, argon
Argon, nitrogen, carbon dioxide
Which of the following are the rarest elements on the Earth?
O, Si, Al, Mg
Cr, Cu, Zn, Fe
La, Ce, Sm, Pr, Nd (or the Rare Earth Elements)
Au, Pt, Ir, Os
Atomic number is equal to the number of ___________.
neutrons
protons
neutrons + protons
neutrons + electrons
What is the wavelength of the visible light spectrum?
400 to 780 nm
0.1 to 10 nm
100 to 400 nm
780 nm to 1 mm
In terms of weight concentration, parts per million (ppm) is equal to ______________.
μg/kg
g/kg
mg/kg
ng/kg
In a volcano monitoring system, what gases are constantly being monitored to predict the possible occurrence of an eruption?
carbon monoxide and methane fluxes
carbon dioxide and methane fluxes
carbon dioxide and carbon monoxide fluxes
carbon dioxide and sulfur dioxide fluxes
What are the pathfinder elements in gold exploration?
Fe, Mn, Co, Cr
Ti, Cu, Zn, Cd, Fe, Mn
Ag, Cu, Pb, Zn, As, Sb
Al, Mg, Si, Na, K, P
According to the Water Quality Guidelines and Effluent Standards of DENR-EMB, what is the maximum tolerable concentration of mercury in Public Water Supply (Class AA and A)?
0.002 mg/L
0.001 mg/L
0.003 mg/L
0.004 mg/L
According to the Water Quality Guidelines and Effluent Standards of DENR-EMB, what should be the pH range of seawater in Marine Protected Areas?
6 - 9
5 - 6.5
7 - 8.5
8 - 9
Aside from Ca2+ and CO32-, what are the metal cations for the following carbonate minerals: siderite, cerussite and dolomite?
(a)
