water quality

Which is your favorite meme?

• 
• 
• 
• 

Biotic factors in a terrestrial biome

• kinds of trees

• temperature

• kinds of birds

• air quality

Where are Reef Building Corals found?

• Where water temperature is between 23 and 29 degrees C

• Where the water is not very salty

• Where the water is clear, so there is a lot of light

• Where water is very deep

• In tropical and semitropical waters

Use the image to decide whether it is hard or soft water.

• Soft Water

• Hard Water

What is the main factor that separates the biomes?

• Land
• Water
• Climate
• Longitude

Which of these is NOT an invasive species in the Great Lakes?

• caddisfly larvae

• sea lamprey

• ruffe

• rusty crayfish

What type of water quality does this indicate?

• bad
• excellent
• good
• fair

Why is a lot organic matter bad for water quality?

• Decomposition lowers DO, since bacteria use up oxygen when they decompose things

• Decomposition lowers nitrates

• Decomposition lowers phosphates

• Decomposition lowers temperature

The presence of pollution intolerant macroinvertebrates like stonefly and caddisfly indicates

• good quality water
• poor quality water

Name this organism

• stonefly
• caddisfly
• mayfly
• dobson fly