Which sediment grain size category ranges from 0.0625 to 2 millimeters?

Which sediment grain size category ranges from 0.0625 to 2 millimeters?

• A. Sand
• B. Sediment
• C. Nodule
• D. Pelagic Sediment

Answer: (A)

On the Wentworth grain-size scale used in marine geology, particles are grouped by diameter. The range 0.0625 to 2 millimeters corresponds to sand. Particles smaller than 0.0625 mm are silt, and those larger than 2 mm are coarser grains (gravel-sized). So this size band is specifically the sand category. Other terms describe location or type rather than grain size: sediment is any loose material; a nodule is a hardened concretion; pelagic sediment refers to where sediment settles (open-ocean bottom) rather than how fine or coarse the grains are.

On the Wentworth grain-size scale used in marine geology, particles are grouped by diameter. The range 0.0625 to 2 millimeters corresponds to sand. Particles smaller than 0.0625 mm are silt, and those larger than 2 mm are coarser grains (gravel-sized). So this size band is specifically the sand category. Other terms describe location or type rather than grain size: sediment is any loose material; a nodule is a hardened concretion; pelagic sediment refers to where sediment settles (open-ocean bottom) rather than how fine or coarse the grains are.