Answer:
Mid ocean ridge are where new crustal material is forced to the surface. The new crustal material is pushed apart forming two different plates moving in two different directions. An ocean trench is where old crustal material is pushed under another plate where it is melted and turned into magma.
world war ii, i think
have a good day, sorry its late lol
Answer:
the silk road
Explanation:
Wasn't alot of information but i think this i right.
Improve irrigation and provide hydroelectric power.
Answer:
B. The peak of the secondary immune response to antigen X
Explanation:
(See attachment for missing details)
The secondary immune response takes place when a person is repeatedly exposed to the same antigen. Getting to this stage, the immunological memory would have been setup and the immune system will immediately proceed to making antibodies.
From the attached, it takes the primary immune system 28 days to get to its peak and the secondary immune response is stronger than the primary immune response