6. yes you can add more beans with the each sounding signal to the beaker because there is pattern of adding beans in the beaker and addition of double has the capacity of 20 vs 40 more beans in the beaker
7. you can add up two more lines in the table
90 vs 180
100 vs 200
8. This could not be possible . the growth of population does effect the resources like land and space and other things .
need more help let me know if you need to understand something again . Text me Thanks
