Final answer:
If per capita MSW generation had grown between 1990 and 2000 at roughly the same rate as in previous years, it would have increased the total MSW curve.
Step-by-step explanation:
If per capita MSW generation had grown between 1990 and 2000 at roughly the same rate as in previous years, it would have increased the total MSW curve (A).
This means that the total amount of municipal solid waste (MSW) generated during that period would have been higher compared to previous years. This increase in waste generation could be due to factors such as population growth, increased consumption, and industrial development.
For example, if the per capita waste generation rate was 1 kg per person per day in 1990 and increased by 10% per year, the total MSW curve would show a steeper upward slope from 1990 to 2000.