Which equation represents a fusion reaction?
Please answer asap
(Look at picture)

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

Find the mass in grams of 1.37x1020 particles of h3po4

Why does his teacher ask him to balance the equation by including the correct coefficient