2. How is primary succession different from secondary succession? Give an example of an event that may lead to
primary succession.
d

In primary succession newly exposed or newly formed rock is colonized by living things for the first time.In secondary succession an area previously occupied by living things is occupied by living things is distributed-disrupted-than recolonized following the disturbance

example is eruption of volcanoes, the big island of hawaii. As lava flows into the ocean,new rock is formed

b. read the phase at the intersection of any given temperature and pressure.