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Oxygen and Nitrogen.
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Name 2 elements in unpolluted air?
Oxygen and nitrogen are two main elements found in unpolluted air. Oxygen is needed for respiration by humans and animals, while nitrogen makes up the largest portion of the Earth's atmosphere and is essential for plant growth.
What are two words that are unhealthy elements in the air we breathe?
Carbon monoxide and particulate matter are two unhealthy elements in the air we breathe, which can have negative effects on human health.
What are two of the elements most common in the air you breath?
The two most common elements in the air we breathe are nitrogen (about 78%) and oxygen (about 21%).
What two elements are found in silicate?
Silicon and oxygen are the two elements found in silicate minerals. Silicon provides the structural framework of the mineral, and oxygen atoms link together to form silicate tetrahedra.
What two elements are never found as elements in nature because they combine so easily with other substances?
Fluorine and francium are two elements that are never found as elements in nature due to their high reactivity. Fluorine readily reacts with almost all elements, while francium is extremely radioactive and decays quickly into other elements.
What two gases are present in unpolluted air?
carbon dioxide, and oxigen
What are the two natural elements found in water?
The two natural elements found in water are hydrogen and oxygen.
What two design elements can be found in the U.S. flag?
Pattern and rhythm are two design elements found in the American flag.
What two elements are masculine?
Fire and Air.
What elements are found in the compound CH4?
There are two types of elements. They are carbon and hydrogen
Which two elements present in air?
Nitrogen and oxygen.
What two elements are common in the sun?
The two common elements found in the sun are Hydrogen and Helium.
Which two groups of elements are never found uncombined in nature?
group 1 elements
What three elements are found in ammonia?
There are only two elements in ammonia: nitrogen and hydrogen.
Name two compounds in unpolluted air?
Carbon Dioxide is present in unpolluted air. Methane (animals grazing literally fart this out) is also present and Nitrogen oxides formed when lighting strikes. The electrical discharge is high enough to cause oxygen and nitrogen to combine. It is basically a natural fertilizer In unpolluted air these compounds are present at levels of about 390 parts per million, 1.8 parts per million, and 1 part per billion respectively. The most abundant and most important compound in unpolluted air is ... water vapour -- present at levels which vary between about 0.1% and 5%, depending on temperature and humidity.
Two elements found in table salt?
Table salt is composed of the elements sodium and chlorine.
What is the heavist elements found in the periodic table?
Osmium and iridium are the two elements with highest density.
