Exam 12: Fresh Water, Oceans, and Coasts

Zooxanthellae are ________________.

Read the following scenario and answer the question below. On a September day in 1999, folks began to notice that Lake Jackson in the panhandle region of northern Florida was shrinking. Within a few days, it was almost gone. A sinkhole had opened beneath the lake and drained it, along with all of the fish and alligators. As aquifers lose water, their substrates can become weaker and less capable of supporting overlying strata and any human structures built upon them. In such cases, the land surface above may subside. Sometimes subsidence can occur locally and suddenly, in the form of sinkholes, areas where the ground gives way with little warning. Once the ground subsides, soil becomes compacted, losing the porosity that enabled it to hold water. Recharging a depleted aquifer may therefore become more difficult. -One reasonable way to prevent sinkholes might be to ________________.

Use the figure above to answer the following question -Frog eggs are usually attached to vegetation or rocks near the surface of a pond. Tadpoles can use essentially all areas of a shallow pond, or the top few feet of a deeper pond or lake. Adult frogs can live on land or in the water. A frogʹs life would be least likely to be disrupted by a change in the ___________________.

Recent research that analyzed the content of commercial bottled water indicates that ________________.

A septic system is ________________.

Explain how warmer coastal waters resulting from global climate change may affect coral reefs.

The exceptionally strong warming of the eastern Pacific is referred to as ________________.

Bycatch ________________.

Humans allocate approximately 70% of their annual freshwater use for ________________.

Choose the item that best matches each item in the following: -Porous, sponge-like layers of rock, sand, or gravel that are capable of holding water

The initial consequence of falling water tables would be the loss of ________________.

Use the figure above to answer the following question -Rooted freshwater plants cannot live below __________.

Read the following scenario and answer the question below. On a September day in 1999, folks began to notice that Lake Jackson in the panhandle region of northern Florida was shrinking. Within a few days, it was almost gone. A sinkhole had opened beneath the lake and drained it, along with all of the fish and alligators. As aquifers lose water, their substrates can become weaker and less capable of supporting overlying strata and any human structures built upon them. In such cases, the land surface above may subside. Sometimes subsidence can occur locally and suddenly, in the form of sinkholes, areas where the ground gives way with little warning. Once the ground subsides, soil becomes compacted, losing the porosity that enabled it to hold water. Recharging a depleted aquifer may therefore become more difficult. -You have been hired by a small town on the Florida coast to give its residents advice about avoiding further sinkholes. You tell them that ________________.

Read the following scenario and answer the question below. On a September day in 1999, folks began to notice that Lake Jackson in the panhandle region of northern Florida was shrinking. Within a few days, it was almost gone. A sinkhole had opened beneath the lake and drained it, along with all of the fish and alligators. As aquifers lose water, their substrates can become weaker and less capable of supporting overlying strata and any human structures built upon them. In such cases, the land surface above may subside. Sometimes subsidence can occur locally and suddenly, in the form of sinkholes, areas where the ground gives way with little warning. Once the ground subsides, soil becomes compacted, losing the porosity that enabled it to hold water. Recharging a depleted aquifer may therefore become more difficult. -Sinkholes can occur when ________________.

Xeriscaping can save water by ________________.

Many present-day fisheries managers ________________.

Overpumping groundwater in coastal areas can cause ________________ to move into aquifers, making the water undrinkable.

All of the following are examples of point sources of pollution except ________________.

A 2003 study reported that ________________% of large -bodied fish and sharks were lost in the first decade of industrialized fishing.

Which of the following will contribute to water conservation?