Quick Quiz
Intermediate Hydrosphere

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

_____1) Phytoplankton are tiny single-celled plants which use chlorophyll to capture the energy in sunlight.

_____2) Phytoplankton are more abundant near the coastlines than in the open ocean.

_____3) Phytoplankton are more abundant near the equator than away from it.

_____4) Phytoplankton abundance remains constant in all areas of the ocean throughout the year.

_____5) Both phytoplankton and land plants use carbon dioxide in photosynthesis.

_____6) Human activities have shrunk the amount of plant nutrients going into the oceans.

_____7) Long term patterns in the weather are called climate.

_____8) 28 degrees Celsius is 82 degrees Fahrenheit.

_____9) Satellites can measure the temperature of a large body of water very accurately from space.

_____10) Buenos Aires is located at about 57 degrees west latitude, 35 degrees south longitude.

_____11) On average, the North Pacific Ocean is warmer than the South Pacific Ocean.

_____12) There are maps that provide information about sea wave height.

_____13) Altimetry is the technique for obtaining sea surface information using data collected from the
                combination of satellites and drifter buoys.

_____14) SWAPS stands for Sea Wave Prediction System.

_____15) The water temperature in the Gulf of Mexico is usually in the low 60's.



Multiple Choice: Circle the letter of the statement which best answers each question.

16) Which of the following is lowest on the food chain?
    a) Krill
    b) Zooplankton
    c) Phytoplankton
    d) Small fish

17) Which of the following is highest on the food chain?
    a) Krill
    b) Zooplankton
    c) Phytoplankton
    d) Small fish

18) Baleen Whales eat:
    a) Turtles
    b) Krill
    c) Other smaller whales
    d) Fish

19) How does fertilizer effect the growth of phytoplankton?
    a) It helps phytoplankton grow
    b) It hinders the growth of phytoplankton
    c) It has no effect
    d) It kills all phytoplankton

20) A population explosion of phytoplankton is called a(n)
    a) Red Tide
    b) Algal Bloom
    c) Algae Bloom
    d) Green Tide

21) How can a population explosion of phytoplankton kill fish and other maritime animals?
    a) They complete for oxygen
    b) When the phytoplankton die, their decay will use up oxygen.
    c) both a and b
    d) neither a or b

22) A population explosion of phytoplankton occurs in response to
    a) changes in ocean water temperature
    b) changes in ocean nutrient levels
    c) the result of water pollution
    d) all of the above

23) What percentage of the Earth's surface is covered with water?
    a) 60%
    b) 70%
    c) 75%
    d) 80%

24) In the sea surface temperature images, land is colored _________ and has a DN value of _____.
    a) white, 0
    b) white, 255
    c) black, 0
    d) black, 255

25) What color represents the coldest sea surface temperature?
    a) red
    b) blue
    c) purple
    d) yellow

26) Helsinki, Finland, would have what directional measurements for longitude and latitude?
    a) East longitude and North latitude
    b) West longitude and North latitude
    c) North longitude and East latitude
    d) North longitude and West latitude

27) This map provides currents, temperatures and ocean floor data for the Gulf of Mexico:
    a) Ocean Features Analysis Map
    b) Multi Channel Sea Surface Temperature Map
    c) Spectral Wave Analysis Map
    d) Altimetry Map

28) What unit of measurement is usually used to measure wind speed on the oceans?
    a) miles per hour
    b) kilometers per hour
    c) knots
    d) none of these

29) The Gulf Stream flows from:
    a) The Yucatan Peninsula to Pensacola, Florida.
    b) The United States to England
    c) The United States to Africa
    d) Pensacola, Florida to the Yucatan Peninsula

30) The annual average chlorophyll level in Chesapeake bay is how many times larger today than in the 1950's?
    a) 1-2 times larger
    b) 2-4 times larger
    c) 5-10 times larger
    d) 10 to 20 times larger