Interactive Online Quiz
Question 1. Sea levels have varied (changed) throughout
geologic time. During the 20th century Earth's sea level each year has:
fallen 2.4 mm
- stayed the same
- risen 1.8 mm
- risen 0.3 m
Question 2. Which of these functions do radar altimeters
provide estimates of surface wind speed
- provide estimates of wave height
- measure the
range from the satellite to the ocean surface
- measure the depth
of undersea mountains
Question 3. What are Nansen bottles?
cylindrical containers that sample sea temperature and salinity
latest sports cooler
- cylindrical containers that sample fish and algae
- cylindrical containers that sample rocks and sand
from the sea floor
Question 4. What ocean current did Benjamin Franklin
do his first scientific study of?
the New York Stream
- the Gulf Stream
- the Falmouth Stream
- the Atlantic Stream
Question 5. Captain Folger told Benjamin Franklin
that certain mammals avoided swimming in this fast-moving stream of water
(current). Which sea mammals was he referring to?
- sea turtles
Question 6. What is the equation that oceanographers
use to measure sea-surface height?
- S + R = SSH
- R - S = SSH
- S - R = SSH
- S x R = SSH
Question 7. How is Lagrangian velocity measured?
by tracking a parcel of water wherever it goes
- by measuring water as
it flows past a fixed position
- by measuring the speed of water flowing
past a moving boat
- by comparing the speed of the water to the speed
of the fish swimming in it
Question 8. How is Eulerian velocity measured?
by measuring the speed of water flowing past a moving boat
- by measuring
water as it flows past a fixed position
- by comparing the speed of the
water to the speed of the fish swimming in it
- by tracking a parcel
of water wherever it goes.
Click here for answers to the quiz.