Aquatic biodiversity and Agriculture

What is NOT an ecological importance of marine systems?

• CO2 absorption

• Heat absorption

• Nutrient Cycling

• Flood control

Which area has the lowest level of biodiversity?

• Coral Reef

• Deep ocean floor

• Estuaries

• Open Ocean

Rapid growth of plant life in aquatic environments caused by fertilizer runoff is called..

• Eutrophication

• Soil erosion

• Acidification

• Nutrient cycling

Commercial extinction is..

• the total extinction of a species

• the depletion of a population of species to the point where fisherman cannot catch enough of them to earn profit

• a sustainable fishing practice

• a result of natural causes

The dramatic loss of biodiversity of Lake Victoria was caused by four factors. Which is incorrect?

• Algal bloom

• Invasive species

• Overfishing

• Soil degradation

What percentage of the worlds ocean are fully protected Marine areas?

• 0.1%

• 0.5%

• 1%

• 0.01%

Which of the following is NOT a way to make fishing more sustainable?

• Establish more MPAs

• Set catch limits

• Increase government subsidy

• Improve regulations

Which of the following does NOT protect freshwater rivers?

• Control of invasive species

• Pollution control

• Land use planning

• Waterflow control

Which type of fishing is the most harmful?

• Trawler fishing

• Deep sea Aquaculture

• Longline fishing

• Sonar Purse-sein

Which is not one of the major three grains grown in agriculture?

• Wheat

• Rice

• Corn

• Rye