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.
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False. A multinational corporation doesn't have to have multinational investors, only assets/properties in other nations.
Answer:
Explanation:
Given that,
The temperature of the surface = 90°F = 305.372 K
We need to find the wavelength of maximum energy emission of your body. According to the Wien's law,
Put all the values,
So, the required wavelength is equal to 
.
Answer:
D
Explanation:
Islam is the dominant religion in North Africa and the Horn of Africa.
Its A the death if a popular political reformer
