Answer:
The rain containing excess of acid I called acid rain
Yes and no because it's important for a citizen to have a grasp on chemistry but you do not need it to be a politician
2. Because a cumulonimbus cloud is a towering vertical cloud
This is covalent network type of solid.
For example, silicon dioxide (SiO₂) is covalent network solid with covalent bonding.
Covalent network solid is a chemical compound (or element) in which the atoms are bonded by covalent bonds in a continuous network extending throughout the material.
Silicon(IV) oxide has continuous three-dimensional network of SiO₂ units and diamond has sp3 hybridization.
This solids do not have free electrons so they are good insulators.
They have strong covalent bonds, so they melt at extremely high temperature.
Other examples are quartz, diamond, and silicon carbide.
More about network solid: brainly.com/question/15548648
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Answer:
That is a good question... Maybe Because it is artificial and the makers do not know how to mimic nature.
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