Answer:
Air particles are a mixture of solids and liquids that are microscopically tiny and suspended by air currents. It can stay in the atmosphere for a few hours to a month or two. Their constituents can be various harmful substances such as heavy metals - lead, nickel, arsenic, cadmium or polycyclic aromatic hydrocarbons
Explanation:
Air particles, nitrogen dioxide and ground-level ozone are now considered to be the three most polluting substances in human health. Exposure during peak concentration and long-term exposure to these pollutants can cause damage from respiratory distress to premature death.
The two body systems are the muscular system and the skeletal system.
Answer:
<em>Proteins serve as structural support, biochemical catalysts, hormones, enzymes, building blocks, and initiators of cellular death. </em>
<em>Explanation:</em>
<em>I hope this helps and have a good day!</em>
Answer:
All of the above.
Explanation:
Technically, all of the answers stated are true.
i hope this helps and good luck!
Answer:
false....they are complex
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