It is C. He said that they where formed in layers.
We find significant soil pH neutralization by afforestation—afforestation lowers pH in relatively alkaline soil but raises pH in relatively acid soil.
Te 2 species don't interbreed in view of temporal isolation. Transient detachment signifies 'disengaged in time,' so this is an instrument that keeps animal groups from mating since they breed at various circumstances. These distinctions can be a season of the day, season, or even unique years.
Answer:
Isotopes of a given element have differing amounts of neutrons.
Explanation:
Isotopes are different versions of the same element. While these isotopes have the same number of protons and electrons as the original element, they differ in the amount of neutrons. As such, this changes the atomic mass of isotopes.
