Edible Seaweed

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Questions and Answers

Which mode of transport is considered the least environmentally damaging when its productive value is taken into consideration?

  • Road transport
  • Shipping (correct)
  • Air transport
  • Rail transport

What was IMO's original mandate primarily concerned with?

  • Marine pollution prevention
  • Shipping industry regulations
  • Maritime safety (correct)
  • Marine environment protection

Which convention made IMO assume responsibility for pollution issues?

  • International Convention for the prevention of pollution of the sea by oil (correct)
  • International Convention for the Control and Management of Ships' Ballast Water and Sediments
  • International Convention on Load Lines
  • International Convention for the Safety of Life at Sea

How many treaty instruments related to international shipping has IMO adopted so far?

<p>51 (B)</p> Signup and view all the answers

Which of the following is NOT a reason why the ocean is important for human survival?

<p>Serving as a source of freshwater (A)</p> Signup and view all the answers

What percentage of the world's protein comes from the sea?

<p>5% (C)</p> Signup and view all the answers

Which zone of the marine ecosystem receives sufficient sunlight for normal photosynthetic activity?

<p>Aphotic zone above the surface (C)</p> Signup and view all the answers

What is the primary role of phytoplankton in the ocean?

<p>Absorbing carbon dioxide and releasing oxygen (B)</p> Signup and view all the answers

Which percentage of the energy entering each level is stored and stays at that level?

<p>10% (B)</p> Signup and view all the answers

What happens to the energy as you move up the trophic levels?

<p>It decreases (D)</p> Signup and view all the answers

Why do tertiary consumers have fewer population numbers in most food chains?

<p>They have less energy available to support them (C)</p> Signup and view all the answers

Why is energy flow shown in the shape of a pyramid?

<p>To represent the decreasing amount of energy (C)</p> Signup and view all the answers

Which two main classes of phytoplankton are mentioned in the text?

<p>Dinoflagellates and diatoms (B)</p> Signup and view all the answers

What can happen when too many nutrients are available to phytoplankton?

<p>They form harmful algal blooms (C)</p> Signup and view all the answers

What are primary consumers in aquatic food webs?

<p>Zooplankton, small fish, and crustaceans (B)</p> Signup and view all the answers

What happens to organic material that sinks to the bottom of the ocean?

<p>It decomposes and becomes nutrients for producers (A)</p> Signup and view all the answers

Which international convention was adopted in 1973 to prevent marine pollution by oil?

<p>International Convention for the Prevention of Pollution from Ships (MARPOL) (A)</p> Signup and view all the answers

Which international instrument regulates oil pollution preparedness, response, and co-operation?

<p>International Convention for the Control of Harmful Anti-fouling Systems on Ships (B)</p> Signup and view all the answers

What is the objective of the International Maritime Organization (IMO)?

<p>To regulate marine pollution and prevent pollution of the sea by dumping of wastes (A)</p> Signup and view all the answers

What is the primary source of protein for over a billion people?

<p>Seafood from the ocean (A)</p> Signup and view all the answers

Which organization is responsible for adopting measures to prevent and control pollution caused by ships?

<p>International Maritime Organization (IMO) (D)</p> Signup and view all the answers

What is the main function of the Marine Environment Protection Committee (MEPC)?

<p>To prevent and control pollution caused by ships (D)</p> Signup and view all the answers

How many treaty instruments related to international shipping has IMO adopted so far?

<p>51 (D)</p> Signup and view all the answers

Which mode of transport is statistically considered the least environmentally damaging?

<p>Shipping (C)</p> Signup and view all the answers

Which of the following is NOT a service provided by healthy marine ecosystems?

<p>Protection against coastal erosion (C)</p> Signup and view all the answers

What is the primary role of phytoplankton in the ocean?

<p>Producing oxygen (D)</p> Signup and view all the answers

What is the aphotic zone in the marine ecosystem?

<p>The zone below 1,000 meters where no sunlight reaches (A)</p> Signup and view all the answers

What is the primary source of oxygen on Earth?

<p>Oceans (C)</p> Signup and view all the answers

Which international convention regulates the safe and environmentally sound recycling of ships?

<p>Hong Kong Convention (B)</p> Signup and view all the answers

What is the purpose of the Integrated Technical Co-operation Programme (ITCP) established by IMO?

<p>To assist countries in building up their human and institutional capacities for compliance with IMO's regulatory framework (A)</p> Signup and view all the answers

What does the International Convention for the Prevention of Pollution from Ships (MARPOL) primarily address?

<p>Marine pollution by oil (B)</p> Signup and view all the answers

What is the main role of seafarers in relation to the sea?

<p>To promote marine environmental awareness (B)</p> Signup and view all the answers

What is the percentage of energy that is stored and stays at each trophic level?

<p>90% (B)</p> Signup and view all the answers

What happens to the energy as it moves up the trophic levels?

<p>It decreases (B)</p> Signup and view all the answers

Why do tertiary consumers have fewer population numbers in most food chains?

<p>They have less energy available to support them (B)</p> Signup and view all the answers

Why is energy flow shown in the shape of a pyramid?

<p>To represent the decreasing amount of energy at each trophic level (B)</p> Signup and view all the answers

Which two types of phytoplankton rely on flagella to move through the water?

<p>Dinoflagellates and diatoms (B)</p> Signup and view all the answers

Which organisms are considered top predators in the ocean?

<p>Large sharks, billfish, and dolphins (C)</p> Signup and view all the answers

Which organisms decompose organic material at the bottom of the ocean?

<p>Bottom-dwelling scavengers (A)</p> Signup and view all the answers

Which organisms can create energy without sunlight using chemosynthesis?

<p>Bacteria (D)</p> Signup and view all the answers

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