The number that Colorado River would have to downcut per year to form the mile-deep canyon in 4 million years is 0.40 millimeter per year.
Depth of canyon = 1 mile
Time taken = 4 million years
Based on the above information, the rate will be:
= Depth / Time taken
= 1 mile / 4 million years
= 0.25 mile / million year
Note tha<em>t 1 mile = 1609344 millimeter</em>
<em />
Therefore, the rate will be:
= (0.25 × 1609344) / 1000000 years
= 0.40 millimeter / years
In conclusion, the rate is 0.40 millimeter per year.
Read related link on:
brainly.com/question/12759847
A primary pollutant is an air pollutant emitted directly from a source.
A secondary pollutant is not directly emitted as such, but forms when other pollutants (primary pollutants) react in the atmosphere.
Examples of a secondary pollutant include ozone, which is formed when hydrocarbons (HC) and nitrogen oxides (NOx) combine in the presence of sunlight; NO2, which is formed as NO combines with oxygen in the air; and <em><u>acid rain</u></em>, which is formed when sulfur dioxide or nitrogen oxides react with water.
Hope this helps:)
Everyone makes mistakes because no is perfect. No one can be perfect no matter how hard they try. Not even that beautiful, young woman. She has her own flaws just like everybody else. So stop asking why do you make mistakes, and start asking how can I learn and grow from your mistakes. If someone doesn't like you for you, thats an issue they have to deal with. It's not your responsibility to change people. Instead move on and find someone better. Someone who will recognize your mistakes as your greatness.
Multiply numerators and then multiply denominators. Or you can change them to decimals and use a calculator.
