Marine Pollution

Description: This quiz aims to assess your knowledge about marine pollution, its sources, types, effects, and potential solutions.
Number of Questions: 15
Created by:
Tags: marine pollution oceanography environmental science
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What is the primary source of plastic pollution in the oceans?

  1. Industrial waste

  2. Agricultural runoff

  3. Personal care products

  4. Land-based litter


Correct Option: D
Explanation:

Land-based litter, including plastic bags, bottles, and straws, is the primary source of plastic pollution in the oceans.

Which type of marine pollution is caused by the discharge of untreated or partially treated sewage and wastewater into the ocean?

  1. Oil spills

  2. Plastic pollution

  3. Nutrient pollution

  4. Heavy metal pollution


Correct Option: C
Explanation:

Nutrient pollution, caused by excessive discharge of nutrients like nitrogen and phosphorus, leads to algal blooms and eutrophication in coastal waters.

What is the main source of oil spills in the ocean?

  1. Natural seeps

  2. Tanker accidents

  3. Offshore drilling

  4. Bilge dumping


Correct Option: B
Explanation:

Tanker accidents, often caused by human error or mechanical failure, are the primary source of oil spills in the ocean.

Which marine pollutant is known for its ability to accumulate in the food chain and pose health risks to humans and wildlife?

  1. Mercury

  2. Lead

  3. DDT

  4. PCB


Correct Option: A
Explanation:

Mercury, a heavy metal, accumulates in the food chain and can cause neurological damage and developmental issues in humans and wildlife.

What is the term used to describe the accumulation of plastic debris in the oceans, forming large floating masses?

  1. Plastic vortex

  2. Plastic soup

  3. Plastic gyre

  4. Plastic patch


Correct Option: C
Explanation:

Plastic gyre refers to the accumulation of plastic debris in specific ocean regions, forming large rotating currents of plastic waste.

Which international agreement aims to prevent pollution of the marine environment by ships?

  1. MARPOL

  2. UNFCCC

  3. Kyoto Protocol

  4. Montreal Protocol


Correct Option: A
Explanation:

MARPOL (International Convention for the Prevention of Pollution from Ships) is an international agreement that aims to prevent pollution of the marine environment by ships.

What is the term used to describe the process by which marine organisms ingest microplastics, often mistaking them for food?

  1. Microplastic ingestion

  2. Microplastic accumulation

  3. Microplastic entanglement

  4. Microplastic contamination


Correct Option: A
Explanation:

Microplastic ingestion refers to the process by which marine organisms consume microplastics, often mistaking them for food particles.

Which marine pollutant is known for its ability to cause coral bleaching and disrupt coral reef ecosystems?

  1. Oil

  2. Plastic

  3. Heavy metals

  4. Ocean acidification


Correct Option: D
Explanation:

Ocean acidification, caused by increased levels of carbon dioxide in the atmosphere, leads to a decrease in ocean pH, which can cause coral bleaching and disrupt coral reef ecosystems.

What is the term used to describe the process by which marine organisms become entangled in plastic debris, leading to injury or death?

  1. Plastic entanglement

  2. Plastic ingestion

  3. Plastic accumulation

  4. Plastic contamination


Correct Option: A
Explanation:

Plastic entanglement refers to the process by which marine organisms become trapped or entangled in plastic debris, leading to injury or death.

Which marine pollutant is known for its ability to disrupt endocrine systems in marine organisms, affecting reproduction and development?

  1. DDT

  2. PCB

  3. Mercury

  4. Lead


Correct Option: A
Explanation:

DDT (Dichlorodiphenyltrichloroethane) is a persistent organic pollutant known for its ability to disrupt endocrine systems in marine organisms, affecting reproduction and development.

What is the term used to describe the process by which plastic debris breaks down into smaller pieces, eventually forming microplastics?

  1. Plastic fragmentation

  2. Plastic degradation

  3. Plastic weathering

  4. Plastic erosion


Correct Option: A
Explanation:

Plastic fragmentation refers to the process by which plastic debris breaks down into smaller pieces, eventually forming microplastics, due to exposure to sunlight, waves, and other environmental factors.

Which marine pollutant is known for its ability to cause respiratory problems and cardiovascular diseases in humans and marine life?

  1. Oil

  2. Plastic

  3. Heavy metals

  4. Air pollution


Correct Option: D
Explanation:

Air pollution, including emissions from ships and coastal industries, can contribute to marine pollution and cause respiratory problems and cardiovascular diseases in humans and marine life.

What is the term used to describe the process by which marine organisms accumulate heavy metals in their tissues, often through the food chain?

  1. Bioaccumulation

  2. Biomagnification

  3. Bioconcentration

  4. Biotransformation


Correct Option: A
Explanation:

Bioaccumulation refers to the process by which marine organisms accumulate heavy metals in their tissues, often through the food chain, leading to increased concentrations in higher trophic levels.

Which marine pollutant is known for its ability to cause reproductive problems and developmental disorders in marine organisms?

  1. Oil

  2. Plastic

  3. Heavy metals

  4. Endocrine disruptors


Correct Option: D
Explanation:

Endocrine disruptors, including certain chemicals and pollutants, can interfere with the endocrine system of marine organisms, leading to reproductive problems and developmental disorders.

What is the term used to describe the process by which marine organisms ingest plastic debris, often mistaking it for food?

  1. Plastic ingestion

  2. Plastic accumulation

  3. Plastic entanglement

  4. Plastic contamination


Correct Option: A
Explanation:

Plastic ingestion refers to the process by which marine organisms consume plastic debris, often mistaking it for food particles.

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