apes quiz 2/10

A group of students want to increase the amount of water infiltration around the property of their urban high school by replacing all the existing impermeable walkway pavers with permeable ones. The school board will not move forward with any property changes unless the students conduct an experiment and collect evidence to help prove that their proposed suggestion to increase water infiltration will be effective. The students create two identical pallets using soil taken from the school's property and install impermeable pavers similar to those found on the school's property in one of the pallets. They install permeable pavers in the other pallet. The students pour exactly the same amount of water over both sets of pavers, leave both pallets in exactly the same environmental conditions, and after one hour measure the amount of water that infiltrated the soil. Which of the following identifies and describes the equipment needed to best determine the amount of water that infiltrated the soil?

A ruler should be used to measure the level of water above the pavers in both pallets immediately after pouring the water over the pavers and immediately after the one-hour wait time.

Which of the following is a direct economic advantage associated with aquaculture?

Aquaculture produces large amounts of seafood for human purchase and consumption year-round.

Based on the diagram, which of the following is an expected consequence of runoff and sewage in an aquatic environment?

Decreased oxygen production by seaweed on the seafloor from an increase in turbidity

Which of the following is a way to potentially eliminate one of the greatest threats to the world's mangrove wetlands?

Integrate ecologically sound shrimp aquacultural practices with mangrove management.

Significant increases in water temperature can drastically change dissolved oxygen (DO)(DO) levels in a lake. Why does the combined effect of these two environmental changes result in algal blooms?

Low dissolved oxygen leads to death for aerobic organisms, like fish, whose decomposition provides an overabundance of nutrients for the algae, resulting in the large blooms.

Which of the following is an unintended environmental consequence of aquaculture?

Meeting an increasing demand for seafood

A beach community was recently negatively affected by a hurricane. Community leaders are looking for a potential solution to prevent damage from future hurricanes. Below is a list of their concerns as well as how important each issue is to the community. Which of the following solutions would best address the issues of greatest concern in the community?

Planting mangrove forests

Which of the following practices would best help to protect against inland and coastal flooding in urban areas?

Preserving wetland and coastal mangrove habitats

Long Island Sound is a body of water off the northeast coast of the United States. Over nine million people live in the small watershed area that feeds into the sound. To determine the effect of the population density on the watershed, scientists measured the oxygen content of bottom waters in the sound. The data from late summer 2013 are displayed in the map below. Which of the following factors would most likely contribute to the conditions observed in the Long Island Sound?

Restricted circulation

When water used to cool power plants during normal plant operations is released into adjacent waterways, which of the following is most likely to occur as a result?

The dissolved oxygen in the adjacent waterways would decrease because used coolant water is warm and leads to thermal pollution.

A group of students want to increase the amount of water infiltration around the property of their urban high school by replacing all the existing impermeable walkway pavers with permeable ones. The school board will not move forward with any property changes unless the students conduct an experiment and collect evidence to help prove that their proposed suggestion to increase water infiltration will be effective. The students create two identical pallets using soil taken from the school's property and install impermeable pavers similar to those found on the school's property in one of the pallets. They install permeable pavers in the other pallet. The students pour exactly the same amount of water over both sets of pavers, leave both pallets in exactly the same environmental conditions, and after one hour measure the amount of water that infiltrated the soil. Which of the following is the dependent variable in the study?

The infiltration rate of the water

A massive bluegill fish kill was observed in a lake near a power plant during the winter months. It was determined that the plant was releasing large amounts of hot water into the lake. Which of the following explains what likely caused the death of so many bluegills in the lake?

The influx of warmer water caused an unexpected increase in the metabolic rate of the bluegills, which led to increased physiological stress from limited resource availability.

Based on the image, which of the following conclusions can best be drawn to describe the conditions in the Long Island Sound?

The sound has large numbers of phytoplankton blooms that are decomposing and consumed by respiring bacteria.

A group of students want to increase the amount of water infiltration around the property of their urban high school by replacing all the existing impermeable walkway pavers with permeable ones. The school board will not move forward with any property changes unless the students conduct an experiment and collect evidence to help prove that their proposed suggestion to increase water infiltration will be effective. The students create two identical pallets using soil taken from the school's property and install impermeable pavers similar to those found on the school's property in one of the pallets. They install permeable pavers in the other pallet. The students pour exactly the same amount of water over both sets of pavers, leave both pallets in exactly the same environmental conditions, and after one hour measure the amount of water that infiltrated the soil. Which of the following is the independent variable in the study?

The type of pavers used in the pallets

The farming of fish such as salmon at aquaculture facilities poses a threat to marine ecosystems because

fewer wild fish will be harvested for human consumption