Unit 2- Lotic vs Lenthic

What are the water parameters of this test? Click 2 that apply

• pH of 6.0

• ammonia of 8.0 ppm

• nitrite of 0 ppm

• nitrate of 40 ppm

If your tank had these parameters, what would you recommend? 

• The nitrate is about 40 ppm, so the tank would need a 20-30% water change

• The tank has a 6.4 pH and does not need a water change

• The ammonia levels are at 8.0 ppm and will need a 100% water change

• The nitrite is at 2.0 ppm and will need a maintenance 10% water change

This has a large littoral, small limnetic, and no profundal

• Pond

• Lake

• none of these

Why is understanding aquifer permeability important for sustainable water management? (choose 3) 

• To ensure equal distribution of groundwater resources

• To regulate the flow of groundwater

• To allow groundwater contamination

• To determine the best location for wells

What is a land area that channels all snowmelt and rainfall into a single point?

• watershed

• estuary

• pond

• lake

This type of lake is geologically young, oxygen levels high, few biomass, diversity low

• eutrophic lake

• oligotrophic lake

• phototrophic

• littoral zone

Which ecoregion is labeled 1 on the map?

• Rolling plain

• gulf prairies and marshes

• pineywoods

• south texas plains

What is the correlation of people and rivers? 

• people live near rivers

• population of people is lower near rivers due to flooding

• Rivers are spread out for the population of people to live near

• There is no correlation between people and rivers

What is the producer

• crab

• mussel

• phytoplankton

• gull

What is a standard percent water change if all parameters are within range? 

• no percent water change

• 90% water change

• 50% water change

• 10% water change