SCIENCE HELP PLEASE!!!!

Nutrient pollution causes algal blooms and fish kills.

Question 2 options:
True
False
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Question 3 (1 point) Question 3 Unsaved
In normal ecosystem low nutrient levels keep algae in check.

Question 3 options:
True
False
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Question 4 (2 points) Question 4 Unsaved
Which of the following contributes to excess nutrients entering the bay?

Question 4 options:

Sewage run-off


Not recycling


Agricultural run-off


Air pollution

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Question 5 (2 points) Question 5 Unsaved
In order to get Phase 2 to turn blue (like we saw in Phase 1), did we need more or less drops of Reagent D than what we used in Phase 1?

Question 5 options:

More


Less

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Question 6 (2 points) Question 6 Unsaved
Which stage of of the experiment had the MOST dissolved oxygen in the water?

Question 6 options:







Phase 1


Phase 2


Phase 3