It can be from volcanic ash, or from eroded material transported by rivers or wind.
Acquired, because everyone has to learn how to speak English you can’t just be born and know how to speak.
Answer:
the correct answer is option C. Na
Answer:
Populations have genetic variation.
The environment changes.
Organisms must have specific traits in order to survive and reproduce.
Explanation:
Natural selection provides an advantage during an adverse condition for organisms that have a rich genetic variation in their population.
Also, environmental changes induced natural selection whereby organisms must adapt to changes around them.
For organisms to survive, they must have specific traits that gives them a competitive reproductive advantage.
It is avogrado number. One molecue of magnesium has 6.023 x 10^23 atoms
