Scientists measured the beak length of a population of birds in a lake in 1960. They measured the beak length of the bird population again in 2010. When was there more variation (spread in lengths) in the beak lengths of the birds by the lake?

Particle exchange energy though elastic collision , hope this .

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.

Aand x are the answers to your question.hope it !