Need help on the question thats 20 points plese help

it has 7 questions on it

What is an australian ballot? a secret ballot provided at public expense an imported ballot printed in australia a ballot made by an individual voter a ballot used in electronic data systems

Some organisms have a large geographic range. for example, the norway rat lives on every continent except antarctica. a population of norway rats is the number of rats in one particular area. do you think it’s scientifically possible for a population of norway rats in north america to carry different genetic mutations than a population of norway rats in africa? do you think it’s possible that they carry some of the same mutations? what types of information can scientists learn by studying the genomes of these two populations of rats?

Which development most directly benefited american businesses in the 1950s?