Sand Dune Trivia Facts! Quiz

Sand dune habitats form by wind transport of sand and the growth of stabilizing vegetation.

Sand dune habitats form by wind transport of sand captured by detritus along the strand line.

Sand dune habitats form by onshore winds transporting sand from the nearshore sandbar.

Sand dune habitats form by onshore winds transporting sand from the berm.

A. saltation b. sand lifted by wind energy bounces along a loose sand surface and sets other grains in motion by its impact.

A. saltation b. sand moved by wind energy creeps along the shore face and sets other grains in motion by its impact.

A. littoral drift b. sand lifted by wind energy bounces along a loose sand surface and sets other grains in motion by its impact.

A. impact threshold b. sand lifted by wind energy bounces along a loose sand surface.

The wind velocity necessary to initiate sand movement is about 10 mph

The wind velocity necessary to initiate sand movement is about 15 mph

The wind velocity necessary to initiate sand movement is about 15-25 mph

The wind velocity necessary to initiate sand movement is about 35 mph

Dunes are made of finer sands because only the smallest grains of beach sand usually move.

Dunes are made of finer sands because only silt grains can be moved.

Dunes are made of finer sands because only finer sand is found at the berm.

Dunes are made of finer sands because finer sands form mounds in which dune plants can take root.

Sand dune tidal litter includes: decomposing grasses and organism remains.

Sand dune tidal litter includes: cordgrass (spartina) and organism remains.

Sand dune tidal litter includes: decomposing grasses, salt spray and organism remains.

Sand dune tidal litter includes: decomposing grasses and ghost crab remains.

Vegetation at the high tide line or in a dune increases sand accumulation by reducing the wind velocity.

Vegetation at the high tide line or in a dune increases sand accumulation by increasing the wind velocity.

Vegetation at the high tide line or in a dune increases sand accumulation by reducing wave turbulence.

Vegetation at the high tide line or in a dune increases sand accumulation by reducing tide turbulence.

What two things does the deep root system of American beach grass and sea oats help these plants avoid? a. surface heat b. evaporation

What two things does the deep root system of American beach grass and sea oats help these plants avoid? a. salt spray b. wave turbulence

What two things does the deep root system of American beach grass and sea oats help these plants avoid? a. wind turbulence b. tidal changes

What two things does the deep root system of American beach grass and sea oats help these plants avoid? a.surface heat b. salt spray

Salt spray provides the main source of nutrients on frontal dunes.

Detritus provides the main source of nutrients on frontal dunes.

Sea oats provides the main source of nutrients on frontal dunes.

Oxygen provides the main source of nutrients on frontal dunes.

Plants hydrate by capturing moisture from rainfall and using their deep root system to reach the water table below the dunes.

Plants hydrate from the tides at high tide and use their deep root system to reach the low tide line below the dunes.

Plants hydrate by using their deep root system to reach deep into the dunes.

Plants hydrate by capturing moisture from detritus at the high tide strand line.

Oxygen is plentiful in the sand dune habitat because of wind.

Oxygen is plentiful in the sand dune habitat because of the abundance of plants.

Oxygen is plentiful in the sand dune habitat because of the plant and animal life.

Oxygen is plentiful in the sand dune habitat because of salt spray and plants.