Conservation of Marine Resources

Q. Which among the following statements is/are true about marine pollution?

1. Ocean plastic is expected to outweigh the number of fish species in the oceans by 2050, at the current rate of plastic pollution.
2. The Great Pacific Garbage Patch in the Pacific Ocean covers an area that is twice the size of Texas.
3. Ocean trash can be broken into smaller pieces — known as microplastics, which finds its way into marine food chains.
4. The number of hypoxic zones in the oceans has decreased over the years.

Q. Which among the following statements is/are true with reference to ocean circulation?

1. The movements of ocean currents regulate Earth's climate by transporting heat and carbon.
2. Ocean currents are only located on the ocean surface.
3. The ocean circulation system is powered only by wind.
4. Density differences in ocean water contribute to a global-scale circulation system called the global conveyor belt.

Q. Which of the following statements is/are true about ocean acidification?

1. Oceans act as nature's carbon sink and abosrbs huge amount of carbon dioxide.
2. The pH of ocean water has been increasing over the years.
3. Certain marine species like algae and seaweed are likely to benefit due to high carbon dioxide levels.
4. Marine calcifying species will suffer and their numbers will decrease due to ocean acidification.

Q. Which of the following are uses of the oceans?

1. Extraction of minerals
2. Source of medicines
3. Generation of electricity
4. Source of Solar radiation

Q. Which of the following are ways to conserve marine resources?

1. Reduce carbon footprint.
2. Reduce the use of non-biodegradable plastics.
3. Avoid purchasing items that exploit marine life.
4. Reduce overseas trade.

Q. Which of the following are major setbacks for the marine environment?

1. Sea tides
2. Loss of habitat
3. Water contamination through toxic substances
4. Climate change

Q. The biotic and abiotic resources found in the oceanic water and at the bottom are called _________ resources.

1. Ocean
2. Oceanic water
3. Water
4. Marine