Answers all in picture below
:
i’m pretty sure it’s , the alkali metals
Answer:
The answer is compound
Explanation:
heterogeneous mixture is wronggggg
<span>According to the concept of punctuated equilibrium, </span>new species evolve suddenly over relatively short periods of time (a few hundred to a thousand years), followed by longer periods in which little genetic change occurs. Hope this helps. Have a nice day.