3. What is graywater?
A. household wastewater that does not contain surfactants
B. wastewater generated from all indoor household usage
C. wastewater generated from outdoor household usage
D. household wastewater except for the wastewater from toilets
4. Which of the following courses should a student take in order to become a hydrologist? Choose the two best answers.
A. statistics
B. life science
C. coding
D. physical science
E. philosophy
5. The Clean Water Act funded the creation of which of the following?
A. aquatic water preserves
B. groundwater remediation plans
C. Superfund sites
D. sewage treatment plants
9. Which of the following water filtration methods requires the use of a membrane or filter?
A. reverse osmosis
B. distillation
C. chlorination
D. ultraviolet radiation
10. Which of the following occurred because of Flint's water crisis? Select the two correct answers.
A. Rates of cancer skyrocketed among adults in Flint
B. General Motors stopped using Flint's water due to corrosion of their machinery.
C. City and state officials immediately alerted residents of widespread danger.
D. Dozens of people contracted a form of pneumonia known as Legionnaires' disease.
11. Which of the following supports the idea that aquaponics helps reduce the impact of human activities on the environment?
A. The installation and maintenance of equipment requires an investment of money.
B. Only certain types of fish can be used in aquaponics.
C. Aquaponics systems use a great deal of water.
D. Reuse of fish waste reduces the use of fertilizers.
13. Which data help hydrologists predict floods? Select the two correct answers
A. water temperature
B. nitrate levels
C. dissolved oxygen
D. impermeable land area
E. snowpack
14. What caused the change in water quality in Flint, Michigan?
A. The city was taken off the Detroit water system to save money.
B. City officials decided to stop fully treating the water to save money.
C. The Flint River became contaminated which caused lead to get into the water.
D. City officials ignored the Clean Water Act and allowed wastewater to be dumped into the river.
3. D. household wastewater except for the wastewater from toilets
4. D. physical science and A. statistics
5. D. sewage treatment plants
9. A. reverse osmosis
10. B. General Motors stopped using Flint's water due to corrosion of their machinery and D. Dozens of people contracted a form of pneumonia known as Legionnaires' disease.
11. D. Reuse of fish waste reduces the use of fertilizers.
13. D. impermeable land area and E. snowpack
14. B. City officials decided to stop fully treating the water to save money.
3. Graywater is D. household wastewater except for the wastewater from toilets.
4. The two best courses to take in order to become a hydrologist are D. physical science and E. philosophy.
5. The Clean Water Act funded the creation of D. sewage treatment plants.
9. The water filtration method that requires the use of a membrane or filter is A. reverse osmosis.
10. The two outcomes that occurred because of Flint's water crisis are B. General Motors stopped using Flint's water due to corrosion of their machinery and D. Dozens of people contracted a form of pneumonia known as Legionnaires' disease.
11. The statement that supports the idea that aquaponics helps reduce the impact of human activities on the environment is D. Reuse of fish waste reduces the use of fertilizers.
13. The two data that help hydrologists predict floods are D. impermeable land area and E. snowpack.
14. The change in water quality in Flint, Michigan was caused by C. The Flint River became contaminated which caused lead to get into the water.
3. To determine the answer to this question, we need to identify what graywater is. Graywater refers to household wastewater that is generated from all indoor household usage except for wastewater from toilets. Therefore, option D is the correct answer.
4. To become a hydrologist, a student should have a strong foundation in scientific and analytical skills. The two best answers would be options D (physical science) and A (statistics). These courses would provide the necessary knowledge and skills in understanding and analyzing water systems and their behaviors.
5. The Clean Water Act is a federal law in the United States that aimed to regulate and maintain the quality of the nation's water resources. It funded the creation of various sewage treatment plants to improve wastewater treatment and prevent pollution. Therefore, option D (sewage treatment plants) is the correct answer.
9. To determine the correct answer, we need to understand the water filtration methods mentioned. Reverse osmosis is a water filtration method that uses a membrane to remove impurities and particles. Therefore, the correct answer is option A (reverse osmosis).
10. The Flint water crisis refers to a series of events that occurred in Flint, Michigan, between 2014 and 2015, where the city's drinking water became contaminated with lead and other pollutants. As a result, General Motors stopped using Flint's water due to the corrosion of their machinery, and dozens of people contracted Legionnaires' disease. Therefore, the correct answers are options B and D.
11. To support the idea that aquaponics helps reduce the impact of human activities on the environment, we need to identify how it specifically helps. Aquaponics involves the combination of aquaculture (fish farming) and hydroponics (growing plants in water). Reusing fish waste in aquaponics reduces the need for synthetic fertilizers, thus reducing the environmental impact associated with their production and use. Therefore, option D (reduction of fertilizer use) is the correct answer.
13. To predict floods, hydrologists rely on various data. Two important factors are snowpack (the amount of snow accumulated in a specific area) and water temperature (which can affect snowmelt and river flow). Therefore, the correct answers are options E (snowpack) and A (water temperature).
14. The change in water quality in Flint, Michigan, was caused by a combination of factors. The city switched its water source from the Detroit water system to the Flint River to save money. However, city officials did not properly treat the water, resulting in lead and other contaminants getting into the water supply. Therefore, the correct answer is option B (City officials decided to stop fully treating the water to save money) and option C (The Flint River became contaminated, which caused lead to get into the water).