Wetlands Answers

How do wetlands reduce flooding and erosion?a.Wetlands reduce flooding and erosion by filtering water.b.Wetlands reduce flooding and erosion by absorbing water and then releasing it slowly.c.Wetlands reduce flooding and erosion through decreased vegetation.d.All of the above

Halophytes can be found in salt marshes.

Which of the following factors is least influential in affecting the biodiversity of wetlands?a.type of wetlandb.food abundancec.high levels of nutrientsd.water abundance

What characteristic is important for plants found in saltwater wetlands?a.tolerance to high temperaturesb.tolerance to salinityc.a range of climate zonesd.all of the above

What contributes to the high level of biodiversity found in wetlands?a.the large amount of available organic matter to organisms that are food for larger organismsb.the amount of available water for organism usec.the high nutrient availabilityd.all of the above

Why are wetlands important to the health of the overall environment?a.They reduce the levels of erosion by trapping sediment.b.They support a wide variety of organisms.c.They are a medium for the filtration and cleansing of water.d.All of the above are true.

Which of the following is not a way in which wetlands filter water?a.nutrient absorptionb.oil absorptionc.sediment trappingd.bacterial absorption

Wetlands improve water quality by _______.a.filtrationb.distillationc.osmosisd.all of the above

Swamps can occur seasonally.

What distinguishes bogs, marshes, and swamps from each other?a.Bogs are deeper than marshes and swamps, and swamps and marshes have acidic groundwater.b.Swamps are deeper and have a larger proportion of surface water than marshes, and bogs have acidic groundwater.c.Marshes have great biodiversity, while bogs and swamps have more water but less biodiversity.d.Bogs, marshes, and swamps are different names for wetlands based on location and not differing characteristics.