BESC Final

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Understanding Water Quality and Management

Test your knowledge on water quality, nutrient dynamics, and wastewater treatment with this comprehensive quiz on aquatic ecosystems. Dive into key topics surrounding the environmental impact of water resources.

Engaging multiple choice and checkbox questions
Covers essential concepts in water management
Ideal for students, teachers, and water enthusiasts

58 Questions14 MinutesCreated by FlowingStream305

What is the reason for acid rain?

Chlorination of water

Chemical reactions such that NO2 reacts with H2O

Chemical reactions such that NO and SO2 react with H2O

What are the major constituents of nutrients in natural water?

Fertilizers and animal wastes

Nitrogen and phosphorous

Waste oil and food waste

Calcium and carbonates

A stream runs into a 'fish kill' zone when the concentration of dissolved oxygen is

5 mg/L

3 mg/L

1-2 mg/L

Which of the following uses the largest percentage of accessible water?

Energy

Irrigation

Recreational

Drinking

Which of the following is not domestic water usage?

Drinking

Lawn maintenance

Crop production

Laundry

Which of the following requires the highest water quality?

Crop production

Recreational

Drinking water

Domestic

In order to feed the increasing population, we could..

Increase the crop intensity

Reduce the irrigation practice

Expand the crop production land

Increase crop yield

What are the parameters that are commonly used for natural water monitoring? Select all that apply

Why is water pH important for aquatic life? Select all that apply

It determines substances solubility

It determines taste

It determines the bioavailability of nutrients

It determines the bioavailability of essential metals and toxic metals

What is the concentration threshold of dissolved oxygen that is stressful to aquatic life?

Lower than 5 mg/L

Lower than 3 mg/L

How do you measure water turbidity?

Filter a certain volume of water, retain the insoluble solids and weigh them out

Measure the light scattering effect based on suspended particles in the water

Test the ionic strength of water with a certain volume

Test the flow rate of the water

Which of the following has the highest electrical conductivity?

Deionized water

Creek water

0.5 mol/L KCL electrolyte solution

When planning for water sampling in streams, one should consider: Select all that apply

Sample downstream

Apply sterile techniques for heavy metal testing

Design sample labels to record location, data, and other relevant sample information

Use the same container for all samples for convenience

Sample main current

Which of the following can increase electrical conductivity of natural water? Select all that apply

To perform a water quality evaluation project of natural water, we shall: Select all that apply

Establish baseline characteristics

Establish a spatial and temporal sampling plan

Establish a data management plan to set comparable thresholds

Purchase a drone to study places that cannot be accessed

Determine what are critical parameters to measure

Conventional wastewater treatment can do the following: Select all that apply

Reduce the organic matter load in water

Reduce environmental pollution and improve water quality

Reduce odor

Generate potable water for consumption

Reduce human health risks

The primary wastewater treatment process is: Select all that apply

A mechanical process

A biological process

Screen large particles and create sludge

Treated with activated sludges

The secondary wastewater treatment process is: Select all that apply

A mechanical process

A biological process

Screen large particles and create sludge

Treated with activated sludges

What happens after settling/sedimentation tank in the primary treatment process: Select all that apply

Water flows and proceeds to advanced treatment process

Sludges are settled and are pumped out of the tank

Wood, animal debris, and similar size material is removed from the water

Tested for contaminants such as disinfection byproducts

How is sludge from wastewater treatment plants disposed of? Select all that apply

Landfills

Incineration

Land application

Anaerobic digestion

Which of the following can be counted as on-site wastewater treatment? Select all that apply

Most of the wastewater treatment will produce the following: Select all that apply

Drains (?)

Soil

Sludge

Organic rich water

Conventional drinking water treatment includes the following steps: Select all that apply

Clarification/coagulation

Sedimentation

Filtration

Disinfection

Select the disinfection types that can be used to treat drinking water: Select all that apply

Boiling

Filtration

Ozonation

Chlorination

Drinking water is tested for the following (based on the Safe Drinking Water Act): Select all that apply

Disinfection byproducts

COVID virus

E. Coli.

Lead

Changes to the source water quality can impact the drinking water treatment process. T/F

True

False

It does not matter as incoming water is treated anyways

In a household, which of the following can be used to reduce human lead exposure: Select all that apply

Point of entry installation of a carbon filter

Point of use UV treatment

Point of use installation of a filter certified to remove lead

Drink bottled water

Which of the following pollutants are inorganic pollutants? Select all that apply

Sodium

Lead

Uranium

Pesticides

Which of the following represents an advantage of modern pesticides? Select all that apply

Rapid impacts

Leading to pest resistance

Increase crop production yield

Protect human health by eliminating pathogens

Which of the following receives more pesticide applications per area in the US?

Crop fields

Lawns

Recreational lakes

Which of the following is added to drinking water but too much can be a health hazard? Select all that apply

Disinfection agents

Fluorine

Nitrates

Oxygen

Thermal pollution occurs when:

Global warming/climate change

Ocean currents meet with each other

Winter storms

Heated water is released into waterways

Waters of the US include: Select all that apply

Beach water of the pacific ocean off of California

Mississipi River

Hoover Dam reservoir

Farm ditches

Which of the following are true statements: Select all that apply

Riparian doctrine originates from England "Common law"

Riparian users are entitled to "reasonable use", which may cause some diminution of streamflow

In riparian doctrine governing states, the water rights belong to the state/federal governments

States with abundant water resources are more likely to follow the appropriation doctrine

The Clean Water Act: Select all that apply

Established the safe drinking water standards

Established basic structure for regulating pollutant discharge into waters of the US

Gave the EPA the authority to implement pollution control programs

Allows individuals or corporations to freely discharge pollutants from point sources - as point source pollution can be managed

Which of the following belongs to environmental exposure routes? Select all that apply

Breathing polluted air

Drinking contaminated water

Eating contaminated food

Exposed to a very large dose of radioactive material in the environment

Which of the following are agents of waterborne diseases? Select all that apply

Hepatits A

Cholera

Pathogenic E. Coli.

Legionella

Which of the following TX state agencies/organizations oversee water rights transfer? Select all that apply

Texas Parks and Wildlife

Texas Groundwater Association

Texas Commission on Environmental Quality

Texas Water Development Board

Drinking contaminated water with low levels of toxins: Select all that apply

Represents an exposure risk for chronicle diseases

Represents immediate risk of hospitalization

Can be mitigated if the source is identified

Can be identified if properly tested

Chlorination of drinking water: Select all that apply

Successfully decreased the waterborne disease infection rate

Can lead to chemical residues in water

Should be monitored for its effectiveness

Is regulated by the EPA in public water supplies

Human population bio-monitoring measures

Pathogenic virus loads in the environment

Bacterial populations in the environment

Target analytes in the human body

Water samples that are contaminated

Which of the following can be a potential source of chemical contamination in water? Select all that apply

Direct release of chemical products into the environment

Manufacturers' site and mishandling of their products

Landfills and leaching from landfills

Wastewater treatment effluent

To reduce the risk of a legionella outbreak, we can: Select all that apply

Increase the disinfection concentration in drinking water treatment

Quarantine anyone infected

Conduct active surveillance for water testing

Properly maintain equipment that handles water distribution

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Understanding Water Quality and Management

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