Answer: Vertebrates move by the actions of muscles on bones. Tendons attach many skeletal muscles across joints, allowing muscle contraction to move the bones across the joint.
Explanation:
Cobalt is comprised of 27 protons, 33 neutrons, and 27 electrons
Hexane is a type of hydrocarbon that consists of six carbon atoms surrounded by 14 hydrogen atoms
Answer: Bubbles formed would be evidence that a chemical reaction took place when the solutions were combined.
Explanation:
As it is given that both 
and HCl chemically combine together leading to the formation of NaCl, water and carbon dioxide gas. As the gas is forming and its formation will also form bubbles into the solution.
This formation of bubbles actually indicate that a chemical reaction has taken place. As molecules of a gas are held by Vander waal forces so, this gas will readily escape into the atmosphere.
Thus, we can conclude that bubbles formed would be evidence that a chemical reaction took place when the solutions were combined.
The brown Haze that forms over Sunny cities like Los Angeles is called smog. It <span> is a yellowish or blackish fog formed mainly by a mixture of pollutants in the atmosphere which consists of fine particles and ground level ozone.</span><span> Hope this answers the question.</span>
