The correct answer would be, "<span>D. beta-galactosidase".
As all the others are made in different organisms.
Hoped I helped.</span>
It should be a chemical change
I believe the answer you're looking for is B. It's Polluted. I hope this helps.
Answer:
It is always twice the value of the actual yield.
Explanation:
Gold is a chemical element with symbol Au (from Latin: aurum) and atomic number 79, making it one of the higher atomic number elements that occur naturally. In its purest form, it is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal.