Answer:
Hardness is one of the better properties of minerals to use for identifying a mineral. Hardness is a measure of the mineral's resistance to scratching. ... Softer minerals can be scratched by harder minerals because the forces that hold the crystals together are weaker and can be broken by the harder mineral.
Explanation:
Answer:
The parents have different genes
Explanation:
The parents are hybrids, and are carriers of certain genes and traits :)
The statement that would discredit Pott's objectivity if it was included in the article is I believe the human race is capable of great things.
That statement gives shows his opinion, making it subjective.
The article Rick Potts wrote in 1998 is a credible source of information because it is objective, reviewed by other scientists and written by the director of the Smithsonian's Human Origin Program.
