List four reasons why scientists perform experiments. Edit: this is for scientific research not chemistry, but they don't have that as a subject on here.

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

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

How many moles are in 43.9 l of oxygen