Aquatics Review

What is a potential disadvantage or "con" associated with the construction of dams?

• Increased water storage for agricultural use

• Enhanced flood control capabilities

• Disruption of natural river ecosystems and fish migration

• Promotion of recreational activities around reservoirs

1. 
   Apart from flood protection, what is another ecological role of wetlands?

• 1. Accelerating shoreline erosion

• 1. Decreasing water quality

• Discouraging plant and animal diversity

• 1. Providing habitat for migrating birds and other plants and animals

How are unconfined aquifers primarily recharged?

• Through artificial means

• By melting glaciers

• Directly by precipitation

• By underground rivers

Where does the recharge of confined aquifers typically occur?

• Directly above the aquifer

• At a more porous location farther away

• At the nearest water body

• Through direct rainfall only

What is a characteristic feature of artesian wells?

• They require constant pumping

• They are open to the atmosphere

• Underground pressure pushes water out constantly

• They are typically drilled in unconfined aquifers

Which type of aquifer do artesian wells typically utilize?

• Surface water aquifers

• Artificially created aquifers

• Confined aquifers

• Unconfined aquifers

How does the recharge process differ between confined and unconfined aquifers?

• Confined aquifers recharge directly by precipitation, while unconfined aquifers recharge from a distant porous location

• Unconfined aquifers recharge directly by precipitation, while confined aquifers recharge from a distant porous location

• Both recharge directly by precipitation

• Both recharge from a distant porous location

1. How does riparian vegetation contribute to maintaining water quality in the transition zone?

• 1. By increasing water temperature

• 1. By releasing excess nutrients into the water

• 1. By removing excess nutrients and sediment from surface runoff

• 1. By reducing the diversity of plant species in the area