It would be Primary because the lake is it’s starting point and the pollution grew all the way to the factory.
A chemical formula is obtained from the number of atoms in a compound.
Chemical compounds are composed of atoms. The number atoms of each element in a compound determines the correct formula of the compound. Before I can write the chemical formula of any compound, I must first determine the number of each atom in the compound.
For instance, phosphorus trichloride contains one atom of phosphorus and three atoms of chlorine hence I would place a 1 in the box for P and 3 in the box for Cl.
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A person whose body weight is more that 20 percent above the recommended level is categorized as obese.
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Answer: No
Explanation:
the freezing point of salt water is lower than that of pure water, due to the presence of the salt dissolved in the water
