Question 1

Which of the following is NOT a major threat to ocean ecosystems?

Accepted Answer

Plate tectonics is a natural geological process that does not pose a direct threat to ocean ecosystems. The other options are major human-induced threats to ocean ecosystems.

Question 2

The majority of coral reefs that have been destroyed are found near less-developed countries. What are some of the reasons why these coral reefs have been more damaged compared with reefs found near countries that are more developed?

Accepted Answer

The answer of The majority of coral reefs that have...

Question 3

What are MPAs?

Accepted Answer

MPAs (Marine Protected Areas) are designated areas within the ocean where fishing and other human activities are restricted or completely prohibited in order to preserve and protect marine ecosystems and biodiversity.

Question 4

Table 29.1.

-Refer to Table 29.1. Describe ways that you can reduce the threats to ocean ecosystems through your personal actions.

Accepted Answer

The answer of Table 29.1.

-Refer to Table 29.1. Describe ways...

Question 5

Which strategy is INCORRECTLY matched with its effect on ocean ecosystems?

Accepted Answer

Prohibiting bottom-trawling in vulnerable areas helps to protect reefs from destructive practices, but it does not necessarily reduce exposure to land-based pollution. The other options are correctly matched with their effects on ocean ecosystems.

Question 6

Which of the following statements is(are) TRUE regarding reducing threats to marine ecosystems?

Accepted Answer

Transitioning to energy sources not based on fossil fuels will reduce the amount of anthropogenic CO₂ released into the atmosphere, thereby slowing ocean acidification and warming. This will help reduce threats to marine ecosystems. The other statements are false; MPAs can improve marine ecosystems, reducing nutrient and toxic pollution is critical regardless of rising sea levels, and overfishing is a significant threat to marine ecosystems.

Question 7

How can we reduce threats to ocean ecosystems? Discuss three strategies to improve oceans and coasts, and explain the potential positive effects.

Accepted Answer

The answer of How can we reduce threats to ocean...

Quiz 29: Mineral Resources and Mining