OCEAN 320 Final Exam
DDT would be characterized as this kind of molecule......
chlorinated hydrocarbon
After 100 years of plankton studies which used small nets to capture the tiny floating
creatures, what major plankton discovery was made in the 1990's of a type more
numerous than any other?
bacterial nanoplankton
As far as harmful science is concerned, which two of the following are a combustible
mix according to Carl Sagan? (select two)
- power
- ignorance
Polyfluoroalkyl substances are commonly referred to as.....
forever chemicals
Most all plastic produced is designed to throw away, hence we have an ocean plastic
problem?
True
Which widespread southern California species was nearly wiped out by coastal DDT?
the brown pelican
Which of the following are applications of PFAS chemicals? (select all that are true)
- PFAS are used in certain types of food packaging
- PFAS are found in fire fighting foam
- PFAS are used in manufacturing or chemical production facilities
What is true about the environmental agreement called the Montreal Protocol as well as
it's subsequent provisions? (select many)
- it has to do with sustaining the ozone layer which is important to life on Earth
- the agreement has resulted in the ozone layer starting to repair itself
- without the agreement we would now be subjected to much more ultraviolet light from
the sun
- It relates to both chlorofluorocarbons and hydrofluorocarbons
What was the doubling time of human population in the last part of the 20th century?
40 years
If the ticket prices of concerts went up 10% per year how long will it take the price to
double?
7 years