Why is the pH of ocean water more acidic in deep water? A) More ...

[Bob-Dole]

Why is the pH of ocean water more acidic in deep water?
 A) More organic material is present.
  B) More carbon dioxide is present.
  C) More oxygen is present.
  D) Temperature is lower.

Question 2

How have the harvesting methods of fish evolved over recent years? Why has the cost of fishing increased?

Question 3

Where in the ocean is oxygen most plentiful?
 A) euphotic zone
  B) aphotic zone
  C) near the seafloor
  D) disphotic zone

[akpaschal]

Answer to Question 1

B

Answer to Question 2

 Fishing methods were once dependent on hook and line techniques, but are mostly reliant on various trawl methods now. Currently, over 5 million people are employed by fishing around the world.
 Approximately 75 of the annual harvest is conducted by commercial fishers who operate large fleets. These fleets are huge factory ships that are capable of processing and canning the fish they collect.
 Fishing costs have increased despite advancements made in technology. The fuel used by the fishing fleets and processing plants has increased substantially in recent years. The cost of fishing has become higher due to the cost of wages.
 Another issue that relates to why fishing is becoming more expensive is that fishers are needed to travel greater lengths to collect their ton of fish each year. This is due to the overexploitation of fisheries.

Answer to Question 3

A

[Bob-Dole]

Gracias!

[Jossy]

Wow, this really help