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Is BOD is greater than COD in waste water treatment?
COD is usually greater than BOD5 as it measures the oxidation of all organics, not just the biodegradable ones
When pollutants in moist air are acted upon by sunlight there is a greater chance of forming?
When pollutants in moist air are acted upon by sunlight, there is a greater chance of forming secondary pollutants, such as ozone and photochemical smog. The sunlight catalyzes chemical reactions between primary pollutants (like nitrogen oxides and volatile organic compounds) and moisture in the air, leading to the creation of these harmful substances. This process can exacerbate air quality issues and pose health risks to humans and the environment.
People who are exposed to toxic air pollutants for long periods of time have a greater chance of developing cancer.?
true
Is water pollution a greater concern for Eastern Europe or is water availability?
Water availability is more of a concern so they can have enough water for the people and agricultural things.
An accumulation of pollutants at successive levels of the food chain is called?
Bioaccumulation. This occurs when pollutants are consumed by organisms at lower trophic levels and then get stored in their tissues. As these organisms are consumed by predators, the pollutants accumulate in higher concentrations in their tissues, posing a greater risk to organisms at the top of the food chain.
Is prescrition drug abuse a greater or lesser concern then illegal drug abuse?
To the abuser, it is an equal concern. The abused body doesn't care if the drug was legal or illegal.
When pollutants in moist air are acted upson by sunlight there is a greater chance of forming what?
When pollutants in moist air are acted upon by sunlight, there is a greater chance of forming secondary pollutants, particularly ground-level ozone and photochemical smog. These reactions often involve volatile organic compounds (VOCs) and nitrogen oxides (NOx), which, in the presence of sunlight, undergo photochemical reactions that lead to the production of ozone. This can have harmful effects on human health and the environment.
What is the quantitative pollutants?
Quantitative Pollutants: The substances which are already present in the environment, but are termed as pollutants when their concentration (quantity) increases in the environment. eg. CO2 is present in the environment in greater quantity than normal and is hence termed as a quantitative pollutant.
How does AQI work?
The Air Quality Index (AQI) is a tool used to communicate how polluted the air is and its potential impacts on health. It measures different pollutants in the air, such as ozone, particulate matter, carbon monoxide, sulfur dioxide, and nitrogen dioxide, and assigns a numerical value to indicate the level of pollution. The higher the AQI value, the greater the health concern.
Is secondary pollutants more harmful than primary pollutants?
Primary air pollutants are emitted directly into atmosphere from a process such as exhaust from a engine, industries, volcanic eruption Secondary air pollution are formed in the air when primary pollutants interact.
Which of the-following is an example of a worldwide concern that needs greater international cooperation and cross-cultural communication?
All of the above
Why is having excessive abdominal fat a serious concern?
Because it places you at a greater risk for developing obesity related illnesses
