Limnology Review

Which of the following would be most likely to impact levels of conductivity in a lake?

• agricultural run off

• leaves in residential yards

• road salt run off

• temperature

Tags

NGSS.MS-ESS3-4

NGSS.MS-PS1-2

pH is a scale that measures acidity and alkalinity. The scale goes from 1 to

• 30

• 1,000,000

• 18

• 14

Dissolved oxygen is required for all organisms to go through the process of

• respiration

• photosynthesis

• eating

• sleeping

Check every answer that applies: Dissolved oxygen levels can be high in a lake because of

• low temperature

• high temperature

• many plants

• not enough plants

• wind

There is a lot of nitrogen on our planet. Most of it can be found:

• in the soil

• in rocks

• in the atmoshere

• in my closet

Phosphorous is found in Earth's lithosphere, the rocky part of our planet. How does it get into our bodies?

• erosion from mountains and enters our waterways and into our plants

• magic

• lightning

• denitrifying bacteria

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

True or false: All organisms require nitrogen and phosphorous for DNA production

• True

• False

Dissolved oxygen and temperature have an (a)   relationship, meaning when one goes up, the other goes down.

This graph shows turbidity over several months. What time of year tends to have the most clarity? Offer a reason for your answer.

Use the graph above. 2018 had high percentages of cyanobacteria blooms. This was the year of a large flood. How could floods contribute to harmful algal blooms?

Tags

NGSS.MS-LS2-4

NGSS.MS-ESS3-2