Global Change Final 2026 Exam
Questions and Verified Answers |
Already Graded A+
What % of marine debris is plastic? Why is this a problem? - 🧠 ANSWER
✔✔60-95%. This is a problem because it is not biodegradable.
How does marine debris enter the oceans? - 🧠 ANSWER ✔✔Wind, runoff,
natural disaster, disposal of boats
What is the Great Pacific Garbage Patch? Do other ocean basins have
them? Why can't you see the garbage patch from the surface? - 🧠
ANSWER ✔✔Collection of marine debris in the North Pacific Ocean. Yes. It
is made up almost entirely of micro plastics.
,What is the most common size for plastic pollution and why does this
matter ecologically? - 🧠 ANSWER ✔✔Most common plastics are small and
micro plastics. This matters ecologically because it makes it much easier
for animals to ingest.
How does marine debris affect marine animals (birds, turtles, marine
mammals)? - 🧠 ANSWER ✔✔When they consume the plastic: fill up/starve,
block system, puncture organs, chemical injection, chemicals in the water
attract plastic
What are some solutions for decreasing the amount of marine debris
entering the ocean? - 🧠 ANSWER ✔✔Trash cat vessels
Beach sweeping machines
Marpol annex treaty- illegal to throw non degradable trash overboard
What does the Marpol Annex V regulate? - 🧠 ANSWER ✔✔It is illegal to
throw non-biodegradable trash and overboard
Which nutrient generally limits primary production in the ocean? - 🧠
ANSWER ✔✔Nitrogen and Phosphorus
, What is eutrophication and its ecological effects? - 🧠 ANSWER ✔✔This is
an overabundance of nutrients like nitrogen and phosphorus in one
designated area. Agal blooms can stem from this.
What are some solutions to reducing coastal eutrophication? - 🧠 ANSWER
✔✔Use less fertilizers
Rotate crops
Use Na fixing crops to supply nitrogens
Wetlands- Protect or restore because they naturally remove nutrients
What is the other CO2 problem? - 🧠 ANSWER ✔✔ocean acidification
What are some of the threats of ocean acidification to marine organisms? -
🧠 ANSWER ✔✔Calcification (CaCO3 shells)
H20 needs to be saturated with CO3 ions
Saturation goes down as the pH does too
How can we stop ocean acidification? - 🧠 ANSWER ✔✔decrease carbon
emissions
Describe the positive feedback loop with regards to ocean acidification - 🧠
ANSWER ✔✔1: Ocean becomes more acidic
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
Questions and Verified Answers |
Already Graded A+
What % of marine debris is plastic? Why is this a problem? - 🧠 ANSWER
✔✔60-95%. This is a problem because it is not biodegradable.
How does marine debris enter the oceans? - 🧠 ANSWER ✔✔Wind, runoff,
natural disaster, disposal of boats
What is the Great Pacific Garbage Patch? Do other ocean basins have
them? Why can't you see the garbage patch from the surface? - 🧠
ANSWER ✔✔Collection of marine debris in the North Pacific Ocean. Yes. It
is made up almost entirely of micro plastics.
,What is the most common size for plastic pollution and why does this
matter ecologically? - 🧠 ANSWER ✔✔Most common plastics are small and
micro plastics. This matters ecologically because it makes it much easier
for animals to ingest.
How does marine debris affect marine animals (birds, turtles, marine
mammals)? - 🧠 ANSWER ✔✔When they consume the plastic: fill up/starve,
block system, puncture organs, chemical injection, chemicals in the water
attract plastic
What are some solutions for decreasing the amount of marine debris
entering the ocean? - 🧠 ANSWER ✔✔Trash cat vessels
Beach sweeping machines
Marpol annex treaty- illegal to throw non degradable trash overboard
What does the Marpol Annex V regulate? - 🧠 ANSWER ✔✔It is illegal to
throw non-biodegradable trash and overboard
Which nutrient generally limits primary production in the ocean? - 🧠
ANSWER ✔✔Nitrogen and Phosphorus
, What is eutrophication and its ecological effects? - 🧠 ANSWER ✔✔This is
an overabundance of nutrients like nitrogen and phosphorus in one
designated area. Agal blooms can stem from this.
What are some solutions to reducing coastal eutrophication? - 🧠 ANSWER
✔✔Use less fertilizers
Rotate crops
Use Na fixing crops to supply nitrogens
Wetlands- Protect or restore because they naturally remove nutrients
What is the other CO2 problem? - 🧠 ANSWER ✔✔ocean acidification
What are some of the threats of ocean acidification to marine organisms? -
🧠 ANSWER ✔✔Calcification (CaCO3 shells)
H20 needs to be saturated with CO3 ions
Saturation goes down as the pH does too
How can we stop ocean acidification? - 🧠 ANSWER ✔✔decrease carbon
emissions
Describe the positive feedback loop with regards to ocean acidification - 🧠
ANSWER ✔✔1: Ocean becomes more acidic
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
