Science exam questions

 

Question 1

(Multiple Choice Worth 2 points)

 

Which of the following is an action that people in Florida could take to help decrease the turbidity of coastal waters?

 

    

Question 12

(Essay Worth 5 points)

 

Bethany has a fish tank at her house. She uses the following data table to keep track of the nitrate and phosphate levels in the tank.

 

0.010 mg/L

Month	Nitrates	Phosphates
January	8.0 mg/L		0.010 mg/L
February	8.1 mg/L
March	7.9 mg/L	0.009 mg/L
April	9.2 mg/L	0.012 mg/L
May	9.7 mg/L	0.020 mg/L
June	9.9 mg/L	0.029 mg/L
July	10.6 mg/L	0.032 mg/L
August	10.8 mg/L	0.038 mg/L
September	11.0 mg/L	0.036 mg/L

Bethany notices that the fish tank is gradually filling with algae. Based on the data she has collected, when did the problem most likely start? Explain.

    Question 1 (Multiple Choice Worth 2 points) 

Which of the following is the most wasteful use of water?

      Question 12 (Essay Worth 5 points) 

List and describe five things your community could do to improve water conservation efforts at home.