Base your answers to questions 66 through 68 on the information below about a solar eclipse that will occur on August 21, 2017. The latitude and longitude coordinates for the movement of the center of the Moon’s shadow across Earth’s surface are given in the table.

66 On the graph, plot with an X the path of the center of the Moon’s

shadow for each position given in the data table. Connect the Xs with a

smooth, curved line. Shadow position 1 has been plotted on the graph.[1]

67 The path of

the Moon’s

shadow will

be about

100 km

wide. On

the graph

shade the

area

between

positions 1

and 2 to

show the

width of the

Moon’s

shadow on

Earth. [1]

P.S./E. Sci.–August ’09

77 On the map, draw the 100-

inch snowfall isoline. Extend

the isoline to the edges of

New York State. [1]

78 The amount of snowfall for

Massena is shown on the

map. What was the amount of

snowfall for Massena? [1]

79 Which landscape region

contains Lake Ontario, the

moisture source for the high

snowfall totals? [1]

78 The amount of snowfall for

Massena is shown on the

map. What was the amount of

snowfall for Massena? [1]

The topographic map for 16 - 18 shows the location of a stream. Points A and B are locations on Earth’s surface.

16 What is the gradient between points A and B?

(1) 1 m/km (2) 2 m/km (3) 10 m/km (4) 20 m/km

17 Based upon the map, in which direction does the stream flow?

(1) North (2) South (3) East (4) West

18 Based upon the map, it appears that

(1) A is at a higher elevation than B

(2) B is at a higher elevation than A

(3) The gradient is least to the Southwest

(4) The highest contour line indicated is 150 m

Base your answers to 71 - 74

on the topographic map, that

shows a portion of the

Taterskill Creek flowing past

the towns of Lawson and

Glenton. The shaded area is

Taterskill Creek. The

arrows in the creek show its

direction of flow. Points A, B,

and C are locations on the map.

Points A and B are connected

with a reference line.

Mercado Dam is located 32 mi

upstream from Lawson. In the

remote possibility of a failure

of the Mercado Dam, the

Taterskill Creek is expected to

rise to the 600-ft contour line

in the vicinity of the two towns.

71 On the grid provided

below, construct a

topographic profile from

Point A to Point B. [3]

72 State a possible elevation

for point C. [1]

73 State the distance in miles along route 16 south of

the Taterskill Creek if you travel from River Road

intersection east toward the intersection with route 9. [1]

74 How many buildings are threatened by a possible flood? [1]