Which of the following is not an example of weathering? a
Oxidation leads to rust formation in rocks when iron reacts with water and oxygen.
b
rocks are dropped into a riverbed when the river slows as it turns at a bend.
c
Ice wedging due to repeated freezing and thawing of water within cracks in rocks.
d
Plants roots push and crack rocks as they grow.

Answerit curves up and levels out.explanationwe assume that the container contains absolutely no ammonia to begin with as it states that "nitrogen gas and hydrogen gas" react to "produce ammonia."at dynamic equilibrium, the product and reactant concentrations are equal.this means that, starting from a concentration of zero, [nh₃] must curve "up" from zero and then level out to a constant concentration.