Question

An important water contaminant is:
                               a) (a) Heavy metals     b) (b) Nitrogen oxides     c) (c) Carbon monoxide     d)(d) NO2 and SO2​

Answer 1

Answer:

An important water contaminant is heavy metal.

So, option a is the correct answer.

Explanation:

Heavy metals are one of the most common pollutants found in wastewater. These metals pose a risk of toxicity to humans and animals even at low concentrations. Lead is extremely toxic and is toxic to the nervous system, kidneys and reproductive system. Exposure to lead causes irreversible brain damage and encephalopathic symptoms. Cadmium is widely used in electroplating, soldering, batteries, televisions, ceramics, photography, insecticides, electronics, metal finishing, and metallurgy. It can enter the environment through metal ore refining, cadmium-containing pigments, alloys and electronic compounds, cadmium-containing phosphate fertilizers, detergents, and refined petroleum products. Batteries charged with nickel-cadmium compounds are also a source of cadmium.Exposure to cadmium causes kidney dysfunction, bone degeneration, liver and blood damage. It has been reported that there is sufficient evidence for the carcinogenicity of cadmium.

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Answer 2

Answer:

An important water contaminant is Heavy metals.

Explanation:

One of the most typical pollutants detected in wastewater is heavy metals. Even at low quantities, these metals represent a risk of harm to both people and animals.

Lead is exceedingly poisonous and harmful to the kidneys, reproductive system, and nervous system. Lead exposure results in encephalopathic symptoms and irreversible brain damage. Electroplating, soldering, batteries, televisions, ceramics, photography, pesticides, electronics, metal polishing, and metallurgy are just a few of the numerous applications for cadmium.

Detergents, refined petroleum products, cadmium-containing phosphate fertilizers, alloys, electronic compounds, cadmium-containing pigments, and the refining of metal ores are some of the ways it can infiltrate the environment.

Cadmium can also be found in nickel-cadmium compounds used to charge batteries. Kidney dysfunction, bone deterioration, liver damage, and blood damage result from cadmium exposure. According to reports, there is enough evidence.

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