Advanced Hydrosphere
Quick Quiz

True-False: Write T in the blank if the sentence is true, F in the blank if the sentence is false.

_____1) In order to animate a series of images using NIH Image, they all must be the exact same size.

_____2) In order to animate a series of images using NIH Image, the images must all be a TIFF or a GIF image.

_____3) In Sea surface temperature images, the color black is used to represent very warm water.

_____4) Ocean temperatures have the tendency to change very rapidly in a short amount of time.

_____5) Sea surface temperatures are derived from a combination of measurements from satellite borne
               instrumentation and on-site ship and buoy platforms.

_____6) The oceans absorb a tremendous amount of energy from the Sun.

_____7) The change of ocean temperatures can have a major influence on weather throughout the world.

_____8) When an El-Nino occurs, the fishing industry off the South American coast flourishes because of
               the warmer water.

_____9) The El-Nino that occurred in 1982-83 was at that time the most severe El-Nino of the century.

_____10) La-Nina is another name for an El-Nino.



Multiple Choice: Circle the letter of the choice that best answers the questions

1) In NIH Image, what color represents the warmest Sea Surface Temperature?
    A) Red
    B) Blue
    C) Yellow
    D) Black

2) In NIH Image, what color represents the coolest Sea Surface Temperature?
    A) Red
    B) Blue
    C) Yellow
    D) Black

3) In NIH Image, what keys are used to change the speed of an animation?
    A) The arrow keys
    B) The F (function) keys
    C) The number keys
    D) It cannot be done
 
4) Sea surface temperatures generally
    A) Change slowly over time
    B) Change rapidly over time
    C) Never change at all
    D) Change only during El-Nino conditions

5) Which range of temperatures best represents the range of sea surface temperatures?
    A) 32o F to 80o F (0o C to 27o C)
    B) 40o F to 110o F (4o C to 43o C)
    C) 20o F to 60o F (-7o C to 16o C)
    D) 30o F to 90o F (-1o C to 32o C)

6) The condition known as El-Nino is noticed first in which ocean?
    A) Atlantic Ocean
    B) Arctic Ocean
    C) Indian Ocean
    D) Pacific Ocean

7) What happens to the water in that ocean (from question 11)?
    A) it begins to warm up
    B) it begins to cool off
    C) the mineral composition begins to change rapidly
    D) evaporation occurs at a much reduced rate

8) El-Nino can cause droughts in:
    A) Australia
    B) Southern Africa
    C) India
    D) All of the above

9) El-Nino can cause flooding in:
    A) Russia
    B) the Southern United States
    C) Northern Europe
    D) All of the above

10) The last El-Nino occurred during what years?
    A) 1991-1993
    B) 1997-1998
    C) 1995-1996
    D) None of the above