Almost 70.8 million I believe
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:)
Answer:
(5,-9)
Explanation:
A point on the circumference of a circle with a center of (3,-9)
Earth has layers, similar to an egg. The first layer of earth is the thinnest, like an eggshell, and it's called the crust. Next, there's the mantle. This part is like the liquid egg whites, because it's three layers (named lithosphere, asthenosphere, and mesosphere) are constantly flowing and moving. Lastly, the core, which is the yolk of an egg. Hope this helped!
Warm air rises and cool air sinks .winds moves anticlockwise direction in the northern hemisphere and in a clockwise direction in southern hemisphere because of the coriolis effect
