Answer: a (weak) acid
Explanation: the solutions are mostly neutral but the pH shown by the indicator as a bright blue means it is slightly acidic meaning the pH is between 6 and 7.6
Answer:
The oxygen atoms have electrons more often than hydrogen.
Explanation:
They developed to be protected by the hard shell from parasites and ther predators.
Answer: the answer is D.
Explanation:I got it right on edge
The scientific investigation is the systematic approach of the scientists to answer the questions about the world. It is applied almost all of the theories including the Theory of Natural Selection. Darwin's theory of evolution is a result of scientific investigation. In this theory, they investigate by observing the distribution of species.
