Exam (elaborations)
Divemaster Final Exam A part 2 Questions and Answers 2024.
- Course
- Institution
Divemaster Final Exam A part 2 Questions and Answers 2024.
[Show more]
Content preview
Divemaster Final Exam A part 2 Questions and Answers 20241. What is the ocean's major source of productivity and the base of the marine
food chain?
a. Krill
b. Seagrass
c. Coral
d. Phytoplankton: d. Phytoplankton
2. True or False. Natural processes, such as earthquakes and storms, are
much more of a severe threat to coral reefs and wetlands than human-induced
threats, such as pollution.: False.
3. True or False. When an alien (invasive) species is introduced into an ecosys-
tem, it may have no natural enemies, which allows it to quickly multiply and
possibly overtake and kill off native species.: True.
4. A exists when relatively warm, low-density surface water
is separated from cool, high-density deep water.
a. freshwater layer
b. thermocline
c. downwelling
d. rip current: d. thermocline
5. If you stand on a beach and watch water generally moving down the coast,
pushed by waves approaching the shore at an angle and assisted by the
prevailing wind, you are looking at a current.
a. rip
b. tidal
c. longshore
d. upwelling: c. longshore
6. A day after strong winds drive surface waters offshore, you notice that water
conditions become clear and cool. This is likely due to:
, a. downwelling
b. extreme tides.
c. a longshore current.
d. upwelling: d. upweling
7. Gravitational interaction between the sun, moon and earth cause ,
while wind is the most common disturbing force that causes .
a. tides / waves
b. surge / currents
c. rip currents / ocean swells.
d. waves / tides: a. tides / waves.
8. True or False. As a wave moves toward shore, its energy is affected by the
bottom causing the wave height to rise, eventually becoming unstable and
spilling its energy as surf.: True.
9. Ways that you can encourage divers to protect the underwater world in-
clude:
a. be a role model for others divers, dive carefully and be aware of equipment
placement when diving.
b. respect underwater cultural heritage and maritime history.
c. report environmental disturbances or destruction and get involved in local
environmental activities and issues.
d. All of the above.: d. All of the above.
10. While outside, at a very cold temperature, you fill a balloon with air. What
will happen when you take the balloon inside and place it near a heater?
a. The density in the balloon will remain unchanged.
b. The volume of the balloon will decrease.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller TutorExpert. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
83100 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now