How does a decrease in abiotic resources impact the population growth in an ecosystem

The following are sumerian inventions, except

Prior to 1994, rwanda's ethnic population was composed of a. a tutsi minority and a hutu majority b. a hutu minority and a tutsi majority c. an even number of hutus and tutsis d. a rwandan majority with hutu and tutsi minorities select the best answer from the choices provided. a b c d

Push-and-pull factors contribute to