Earth Science - January 2011

46 The diagram below shows an experimental setup to compare water retention and permeability in two columns with equal volumes of spherical plastic beads of different diameters.

Which statement best describes the water retention and permeability in the two columns of beads?

(1) The column with 4-mm beads has greater water retention and permeability.
(2) The column with 12-mm beads has greater water retention and permeability.
(3) The column with 4-mm beads has greater water retention and the column with 12-mm beads has greater permeability.
(4) The column with 12-mm beads has greater water retention and the column with 4-mm beads has greater permeability.

47 The weather satellite image below shows two large swirl-shaped cloud formations, labeled A and B, over the Pacific Ocean.

These large swirl-shaped cloud formations most likely represent

(1) polar air masses   (3) tornadoes
(2) warm fronts         (4) hurricanes

Base your answers to questions 48 through 50 on the map below, which shows the generalized bedrock of a part of western New York State.

48 During which geologic time period was the surface bedrock of Grand Island formed?

(1) Cambrian     (3) Silurian
(2) Ordovician   (4) Devonian

49 Sediments that are transported by the Genesee River generally become

(1) smaller and rounder            (3) larger and rounder
(2) smaller and more angular    (4) larger and more angular

50 As the Niagara River enters Lake Ontario, the velocity of the river water

(1) decreases and larger sediments are deposited first
(2) decreases and smaller sediments are deposited first
(3) increases and larger sediments are deposited first
(4) increases and smaller sediments are deposited first

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