I think all of them, but the most dangerous is A. So by putting signs they alert others to be careful, but at the same time I do not see any bad influence of artificial light for turtles.
A base is a compound that produces hydroxide ions in solution.
To break down the word pangaea, you can split it into "pan" and "gaea". "Pan" means whole, and "gaea" means Earth in Greek, so pangaea means "all lands".
<span>At any given moment the compartment contains the most circulating blood in the lungs.
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Answer:A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled. The independent variable is the one that is changed by the scientist.
Explanation: