1 a change from a time of lower productivity to a

1. A change from a time of lower productivity ........ to a more productive Epoch
2. significant changes in surface and deep ocean currents
3. a change from a warmer time ......... to an Epoch of ice ages
8. What are some reasons why Jet streams movements become wavey? (large amplitude) (Select all that
apply)
1. A lower north-south temperature gradient
2. Arctic warming
3. Ocean temperature distribution in the Pacific Ocean
4. Geographical features and atmospheric conditions over land
9. A change from a La Nina current to an El Nino current would ...... (select all that apply)
1. increase the chances of ecosystem changes occurring off the California coast
2. increase the chances for flooding in Southern California
3. increase the chances of exotic marine species in California waters
10. What is true about the rate of carbon dioxide build up in the atmosphere during initiation of the PETM
climate excursion?
1. It was slower than the rate of our current anthropogenic carbon emissions
Unit 4 Quiz
1. When talking about acidification, pH level is the same as .....
Answer : Hydrogen ion concentration
2. The "Deepwater Horizon" was an older style drill rig from the 1980's
Answer: False
3. Growing coral faster that nature has been accomplished by..
Answer: cutting the corals into smaller pieces stimulates growth
Productivity in the southern ocean is great

when the sun is out, but what e
4. From May to October in 2018 the level of CO2 in the atmosphere decreased .... WHY?
Answer: it happens every year...its a seasonal thing
5. What does "ppm" stand for? ..really..
Answer : parts per million
6. Where would you go scuba diving to see the highest coral and fish diversity?
Answer : Central Indo-Pacific
7. Choose all the following that are potential stresses which could cause coral bleaching?
Answers : Changing ocean chemistry, warming waters, pollution,
8. Why are the southern oceans such as good carbon sink?
Answer : they are productive
9. Which of these is the most common source of petroleum?
Answer : Plankton
10. What do shallow water stoney corals rely on to provide most all their food?
Answer : symbiotic plant cells
Unit 5 Quiz
1. Which of the following is true about the California Current?
Answers : it flows from north to south and the flow of the current along the coast

help form upwelling currents
2. Typhoon Intensity in the western Pacific near Asia appears to be increasing,
What is the main reason?
Answer : Ocean temperature changes
3. A change from a La Nina current to an El Nino current would ...... (select all that
apply)
Answers : increase the chances of ecosystem changes occurring off the California coast,
increase the chances of exotic marine species in California waters, increase the chances for
flooding in Southern California
4. A change in the geography of the planet that occurred about 3.7 million years ago
which likely altered climate was related to .....