Q.1
Main Producers in ocean are?
  • Zooplankton and water
  • Small Plankton and Zooplankton
  • Coral reefs and Sponges
  • Algae and other microscopic organisms
Q.2
A body of water that has high turbidity??
  • Cloudy
  • Clear
  • Acidic
  • Basic
Q.3
What is a biologic indicators?
  • Insect larvae
  • Many kinds of trout and mayflies
  • Monitor the health of the ecosystem
  • Variety of organisms clean the water
Q.4
Under what conditions are large numbers of fish in a lake most likely to die?
  • Right after a storm with heavy rainfall
  • When turbidity is low and Temperature are in average range
  • High pH
  • When waters dissolved oxygen is high and temperatures are lower than averge
Q.5
What is a Non-Point source Pollution?
  • Soil from farms
  • Acid rain
  • Damaged Sewer Pipe or system
  • Salts from irrigation of farm fields
Q.6
What is a point-source pollution?
  • Oil spilling from supertanker
  • Drainpipe spilling waste into river
  • Toxic Chemicals
  • Single sites of waste
Q.7
Which of the following affects how freshwater is used?
  • Age
  • Population size
  • Education
  • GPA
Q.8
Canada's lakes have _____ % of the world's surface freshwater
  • 20
  • 60
  • 100
  • 0.03
Q.9
Where is the majority (>60%) of the world's surface freshwater?
  • Canada
  • Near unpopulated areas
  • In large cities
  • On islands
Q.10
How many gallons of water are used from Lake Michigan EACH DAY?
  • 100
  • 1 billion
  • 3 million
  • 1 million
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