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 _______ 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-ESS3-2

NGSS.MS-LS2-4