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.
C. Eligible voters are required by law to vote in elections.
Tundra.
Tundras are places that are frozen, such as Antarctica or the North Pole.
Answer:
B
Explanation:
More specifically, porosity of a rock is a measure of its ability to hold a fluid. Mathematically, it is the open space in a rock divided by the total rock volume (solid and space). Permeability is a measure of the ease of flow of a fluid through a porous solid.
Answer:
3<em>.</em><em> </em><em>when </em><em>harmful</em><em> </em><em>gases,</em><em>such </em><em>as </em><em>sulfur </em><em>dioxide</em><em> </em><em>and </em><em>nitrogen</em><em> </em><em>oxide</em><em>,</em><em>react </em><em>with </em><em>water </em><em>In </em><em>the </em><em>atmosphere</em><em>,</em><em>they </em><em>can </em><em>produce</em><em> </em><em><u>acidic</u></em><em><u> </u></em><em><u>rain.</u></em>
<em>4</em><em>.</em><em> </em><em>the </em><em>agent</em><em> </em><em>of </em><em>erosion</em><em> </em><em>involved</em><em> </em><em>in </em><em>stream </em><em>erosion </em><em><u>is </u></em><em><u>water.</u></em>
<em>I </em><em>hope</em><em> this</em><em> helps</em>
