Answer: Sphere of influence, in international politics, the claim by a state to exclusive or predominant control over a foreign area or territory. The term may refer to a political claim to exclusive control, which other nations may or may not recognize as a matter of fact, or it may refer to a legal agreement by which another state or states pledge themselves to refrain from interference within the sphere of influence.
Explanation: i hope this helped ...
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:)
Try https://www.sciencedaily.com/terms/water_pollution.htm or https://www.britannica.com/science/water-pollution
The Andes or Andean mountains are the longest continental mountain range in the world and they extend from north to south through seven South American countries.
here's your answer
“________mòód ôff_________”
