It is a poisoning disease that nervous system, mainly central nervous system, is damaged by methylmercury.

Protozoa that causes Beaver disease and backpacker's disease

An undesirable change in physical, chemical, or biological characteristics of air, land, water, or soil due to the introduction of contaminants called?

What is the increased productivity of ponds and lakes due to excess nutrients called?

Which of the following factor help to conserve water quality?

The detrimental effect on organism and water quality with temperature rise of aquatic system is the reduction of ________ of water.

Schistosomiasis is a common water-borne disease caused by parasites from snails.

Schistosomiasis is a common water-borne disease caused by parasites from snails.

Which of the following statement is wrong regarding turbidity?

Which of the following statement is wrong regarding permanent hardness?

Which type of bacteria has a rod shaped structure?

______ is the process of overgrowth of plants and algae in lakes.

The world's available fresh water supply is about _____ percent of that total water supply.

______ are found in agricultural wastes.

______ concentrations of chlorides indicate that the water body has been used for waste disposal.

Turbidity in water is caused by which of these following?

Which characteristic of water does Calcium contribute to?

Sodium ions contribute to which characteristic of the water?

What is the role of chlorine in water treatment?

Which water quality parameter can be influenced by changes in pH because pH affects the balance between bicarbonate, carbonate, and carbon dioxide in water?

Which water quality parameter can be influenced by changes in pH because pH affects the balance between bicarbonate, carbonate, and carbon dioxide in water?

____ is the process by which toxins enter the food web by building up in individual organisms.

The following are nephrotoxic metals, except

What is the ideal pH range for most aquatic life?

Which metal's presence in drinking water is considered toxic even in low concentrations?

High nitrate levels in drinking water can cause which health condition in infants?

What is the primary source of high levels of phosphates in water bodies?

What water quality parameter is typically affected by thermal pollution?

Which water quality parameter would be a direct indication of ionic strength in water?

It is the most severe form of chronic cadmium poisoning caused by prolonged oral cadmium ingestion

Bacteria that is responsible for Weil’s Disease

Refers to a disease prevalent in and confined to a particular population.

Total Dissolved Solids (TDS) measure the concentration of suspended particles in water.

High turbidity in water can reduce light penetration and negatively impact aquatic plants.

Because dissolved salts and other inorganic chemicals conduct electrical current, conductivity increases as salinity decreases.

At elevated temperatures and increased metabolic rates, organisms that are less efficient at food utilization flourish while others decline and are perhaps eliminated.

Minamata disease causes symptoms such as tremors, vision loss, and impaired coordination.

The eutrophication process causes the algal bloom which results in the milkiness in water causing turbidity.

Suspended solid is filterable solid whereas dissolved solid is non-filterable solid.

Identify the biological classification of this pathogen (e.g., bacteria, virus, fungus, parasite) and specify the disease it causes. Entamoeba histolytica

Identify the biological classification of this pathogen (e.g., bacteria, virus, fungus, parasite) and specify the disease it causes. Taenia solium

Identify the biological classification of this pathogen (e.g., bacteria, virus, fungus, parasite) and specify the disease it causes. Giardia lamblia

Identify the biological classification of this pathogen (e.g., bacteria, virus, fungus, parasite) and specify the disease it causes. Salmonella

Identify the biological classification of this pathogen (e.g., bacteria, virus, fungus, parasite) and specify the disease it causes. Ascaris lumbricoides

Identify the biological classification of this pathogen (e.g., bacteria, virus, fungus, parasite) and specify the disease it causes. Balantidium coli   

Identify the biological classification of this pathogen (e.g., bacteria, virus, fungus, parasite) and specify the disease it causes. Vibrio comma

Identify the biological classification of this pathogen and specify the disease it causes. Cryptosporidium parvum

What is the primary source of nitrates in water bodies that can lead to eutrophication?

Which of the following is a common indicator of water quality that reflects the presence of organic matter?

Yellowish-brown water in natural sources is commonly caused by:

Which metal is nephrotoxic and commonly found in batteries?

Which disease became an epidemic in Baguio in 2004–2005?

Which fluoride level causes dental mottling?

What does a Secchi disk measure?

Water that returns to the atmosphere from plants is due to:

A water source with fluoride concentration of 5 mg/L may cause:

A high BOD in water indicates:

DDT is considered dangerous because it: