Answer:
Ocean trenches are formed when the denser oceanic plates sink.
Explanation:
In particular, ocean trenches are a feature of convergent plate boundaries, where two or more tectonic plates meet. At many convergent plate boundaries, dense lithosphere melts or slides beneath less-dense lithosphere in a process called subduction, creating a trench.
When there is an increase in hydrogen ion concentration, the soil becomes acidic.
Hydrogen is a chemical element with symbol H and atomic number 1. With a standard atomic weight of 1.008, hydrogen is the lightest element on the periodic table. Its monatomic form is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass.
C the answer is C that’s the answer C