There used to be solid land and then something happened and a lake or just a body of water formed over it or was made over it
D.) A secondary pollutant caused by a chemical reaction between pollutants and light.
Answer:
Explanation:
Terms in this set (15) Where in the neuron is an action potential initially generated? Axon hillock. this region (first part of the axon) receives local signals (graded potentials) from the soma and dendrites and has a high concentration of voltage-gated Na+ channels.
Answer:
D
Explanation:
Pretty sure that's the correct answer.
C) Occurs in areas without soil.
Primary succession occurs in lifeless areas in which <span>soil that is incapable of sustaining life is formed due to lava, sand dunes, and </span><span>rocks left from a retreating glacier.</span>
