Answer:
it was exactly 3.5 billion years ago
Explanation:
Answer:
b times its self b mailman
Explanation:
c times itself c squared
<h2>Answer </h2>
Option C - Secondary Succession
<u>Explanation </u>
Secondary succession occurs in an ecosystem after a lava flow has completely covered the surface of an area of land. Secondary succession is a method originated by an incident that decreases an already organized ecosystem to a less group of varieties and secondary succession happens on pre-existing clay example forest fire, harvesting, hurricane, and similar. It is a succession is the type of succession which can take place after the destruction of the area. Examples include areas which have been cleared of existing vegetation.
According to modern systems of classification, birds are descendants of T<span>heropoda dinosaurs. These dinosaurs are called Paraves. From this clade, a node is made during the evolution. The new clade is called Aves. This is where birds are classified.</span>
