Answer:
<u>Radon </u>in door source of air pollution.
Explanation:
- From all Pollutant and sources found in the interior of the homes like the pet dander and molds, pesticides and asbestos. Radon a chemical element found in homes having an atomic number of 86. It is a radioactive and odorless tasteless natural gas.
- Through the radon is non-reactive elements, it can be oxidized with compounds of fluoride. It has no stable isotopes characterized bt unstable mass. In the mining industry, it caused due to the exposure from the released air.
- Radium-226 is used to produce the radon which is found in uranium ores and phosphate rocks. An estimate of about 2.4 billion curies of radon is released every year into the soil. This pollutant can also be found in water bodies and even in construction sites.
Some famous lines of latitude south of the equator are the Tropic of Capricorn (23.5 degrees south) and The Antarctic Circle (66.5 degrees south). North of the equator are the Tropic of Cancer (23.5 degrees north) and the Arctic Circle (66.5 degrees north).
Streams flowing from mountainous terrain commonly flow across alluvial fans at the edges of the valleys. ... In arid and semiarid regions, seepage of water<span> from the stream can be the principal </span>source<span> of aquifer recharge.</span>
1. Lack of Jobs
2. Migration that occurs when people follow fellow citizens to another location
3. China
<em>The </em><em>capital </em><em>city </em><em>of </em><em>France </em><em>is </em><em>Paris</em>
<em>hope </em><em>it </em><em>helps</em>
