Political system or federalism! Depending on how the question should be answered! Sorry if I’m wrong
Answer:
As the sentences read, it is describing characteristics of areas such as steppes which are often found between the tropics and polar regions:
(1) Also known as steppe, __semiarid__ climates are a type of dry climate that contain more water than arid climates.
(2) Thick __soil__ is not found in deserts because there are fewer plants than in more _humid___ climates.
(3) A high rate of _humid(ity)__ is often characteristic of a climate with high temperatures and low evaporation humidity.
(4) A desert has a drier climate than a __steppe__.
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.
1,020.165 is this a answer?
