_____1. The "eyedropper" tool can select a specific color from the LUT.

_____2. The "eyedropper" tool can determine the RGB value of a specific pixel on the image you are working with.

_____3. To get the information window to move to the front of the image you select Options from the menu bar.

_____4. You can use gif images for data manipulation in NIH image.

_____5. NIH image gives accurate measurements of images after calibration.

_____6. A Plot Profile gives you a line graph of X and Y values.

_____7. The units of choice for Plot Profiles or other measurements are atomatically loaded with the image.

_____8. TIFF images or PICT images from the Internet must be converted before you can use them in NIH image.

_____9. Images are visualizations of numerical data.

_____10. You can generate a Plot Profile by using the "line" tool or by double clicking on the "line graph" tool.

_____11. You must have an accurate distance measurement of the image to calibrate the image.

_____12. To make an animation the images do not have to be the same size.

_____13. To make animations you first have to convert Windows to Stack on the menu bar.

_____14. Once you make an animation you cannot reset the speed.

_____15. The individual pixel values are from 0 to 255.

_____16. On a Plot Profile, you must match your maximum Y value to the maximum RGB value on the image to get a meaningful profile.

1. Cryosphere comes from the Greek word kryos meaning:

a) frost
b) cold
c) chilly
d) frigid
 
2. Which states make up the area drained by the Columbia river?

a) Idaho, Utah, Colorado, Arizona, New Mexico
b) Idaho, Washington, Montana, Oregon, Wyoming
c) California, Oregon, Neveda, New Mexico, Arizona
d) Idaho, Utah, Montana, Wyoming

3. In the Columbia river drainage basin, which month had the greatest snow water equivalent?
a) April
b) January
c) February
d) March
 
4. From the months of snow water equivalent images, on which major river would March snow melt cause flooding?

a) Columbia
b) Missouri
c) Colorado
d) all rivers

1. Which type of rock appears most often on the top of ridges in these western states?

a) igneous (granitic)
b) metamorphic (gneisses)
c) conglomerate
d) sedimentary (limestone)
 
2. Which type of rock appears most often in the valleys of these western states?

a) igneous (granitic)
b) sedimentary (mudstone)
c) conglomerate
d) metamorphic (gneisses)
 
3. What generally accounts for mountain formation in these western states?

a) rock type
b) uplift
c) volcanism
d) all of the above
 
4. What types of rock can be found making up steep terrane in these western states?

a) sedimentary
b) any rock type can make steep terrane
c) metamorphic (gneiss)
d) igneous (granite)
 
5. Where are the rock types shale, slate, or mudstone usually located on the Plot Profiles?

a) usually in high places
b) usually in low places
c) randomly, there is no pattern
d) the sides of canyons
 
6. What could account for a non-resistant rock forming a topographic high?

a) uplift of resistant rock
b) lateral displacement
c) ancient volcanism
d) down dropping of resistant rock
 

1. The Vegetative Index is:

a) what type of plant cover exists in a specific region
b) the amount of vegetation on the ground
c) the percent of bare ground in an area
d)the measure of possible soil erosion in an area
 
2. The Vegetative Index is computed using:

a) a single satellite image
b) using two satellite images multiplied together
c) the difference between visible light and infrared heat images
d) the difference between radio wave and gamma ray images
 
3. The darker spots in the channel 1 image are most likely produced by:

a) plants occurring naturally
b) water from the rivers
c) population areas
d) plants responding to irrigation
 
4. When you combine the two images in NIH image (by dividing the difference between channel 2 and channel 1 by the sum of channel 2 and channel 1) you see the:

a) Normalized Difference Vegetative Index
b) Natural Defracted Vegetation Indice
c) Neutral Departmentalized Vegetation Index
d) Normal Deferred Vegetable Inference
 

For the Great Blue Heron; use the printouts of: Percent Change per Year map, the Distribution map, and the Time Series graph to answer the following questions:

1. The number of states with areas in which no Great Blue Herons were counted totals:

a) 0
b) 5
c) 9
d) 12
 
2. The greatest percent change on the map of percent change is:

a) + or - 1.5%
b) + or - 2.5%
c) + or - 4%
d) greater than + or - 1.5%
 
3. From the Time Series graph, what year had the lowest count of Great Blue Herons?

a) 78
b) 66
c)94
d) 82
 
4. Using the same graph as in question 3., what year saw the start of the greatest change (steepest slope)?

a) 94
b) 74
c) 86
d) 82
 
5. Using your knowledge of history, what event took place in the 60’s that probably helped increase the numbers of Great Blue Herons?

a) ban on hunting Great Blue Herons
b) ban on use of DDT
c) ban on wet land eradication
d) ban on sale of Great Blue Herons