1) (a) what happens to the volume of the lungs when they expand? (b) Explain why air is sucked into the lungs (need to explain about the gas pressure)

PLS HELP THXX A LOTT
the topic is related to gas presssure
thx soo much for helping

Subduction zones occur on earth where dense oceanic crust dives under more buoyant continental crust. these boundaries are characterized by a deep ocean trench next to a high continental mountain range, large numbers of earthquakes and volcanoes. all of this is further evidence for the a) big bang theory b) origin of the species eliminate c theory of plate tectonics d theory of natural selection 4 sedimentary rocks found high in the himalayen mountain

How is the composition of a meteorite relevant to finding out the composition of earth's core?

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al