Answer:
they contain hymoglobin
Explanation:
the red pigment in blood cells
<span>Infections
</span><span>viruses
</span>Bacteria
Mold
and so on.
1. sewage system - facility consisting of a system of sewers for carrying off liquid and solid sewage. sewage works, sewer system. facility, installation - a building or place that provides a particular service or is used for a particular industry; "the assembly plant is an enormous facility"
The carbon dioxide escapes, and bubbles forth as a gas. Baking soda and vinegar react<span> with each other because of an acid-base </span>reaction<span>. </span>Baking soda<span> is a bicarbonate (NaHCO3) and </span>vinegar<span> is an acetic acid (HCH3COO)</span>
