Which term describes a sediment particle sized between gravel and silt, commonly forming beaches and deserts?

Which term describes a sediment particle sized between gravel and silt, commonly forming beaches and deserts?

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

Answer: (C)

Sand is the mid-sized grain between gravel and silt in sediment classification. It typically ranges from about 0.063 to 2 millimeters in diameter, which lets it be readily moved and deposited by both water and wind. That mobility explains why sand commonly forms beaches, where waves sort and deposit grains, and deserts, where wind-driven dunes accumulate sand. Nodules are mineral lumps that form concretions, not particle size classes. Pelagic sediment refers to fine grains that sink through the water column in the open ocean, often clay or silt. Oolite sands are carbonate sands made of ooids and form in warm, shallow seas, not a general term for the grain size between gravel and silt.

Sand is the mid-sized grain between gravel and silt in sediment classification. It typically ranges from about 0.063 to 2 millimeters in diameter, which lets it be readily moved and deposited by both water and wind. That mobility explains why sand commonly forms beaches, where waves sort and deposit grains, and deserts, where wind-driven dunes accumulate sand.

Nodules are mineral lumps that form concretions, not particle size classes. Pelagic sediment refers to fine grains that sink through the water column in the open ocean, often clay or silt. Oolite sands are carbonate sands made of ooids and form in warm, shallow seas, not a general term for the grain size between gravel and silt.