Are you serious? Is this a 'trick' question? You don't know that silica has density greater than water? Trick Question....
I'm beginning to 'wonder' about this site. I'll bet you're stood-up by an ABC-Agency.
Who would ask kids this kind of question?
Info-miner's or 'profilers'!
The answer would be D. <span>they needed the bison for food.
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I believe it’s C. FAFSA (Free Application for Federal Student Aid)
B, elected representatives who are the vo of the people.
The definition of a republic is a government where people elect representatives to be their voice and express their concerns during the lawmaking process.
The day starts out bright and sunny. Later, a brown haze develops. this indicates the presence of <u>Nitrogen Dioxide.</u>
Nitrogen dioxide (NO2) is a highly reactive gas produced from the fumes of vehicles, power plants and factories, burning of fuels and garbage, etc.
When NO2 is present in the air in high concentrations, it appears as a brown haze. This is because it reacts with the other chemicals in the air and forms what are called secondary pollutants. Some of these include ozone, particulate matter, etc. which further leads to acid rain.
Nitrogen dioxide can cause respiratory illnesses by irritating the lungs, weaken the immune system, and intensify existing health issues like asthma.
To learn more about Nitrogen dioxide: brainly.com/question/12893682
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