Asettlement boom occurred in australia during the mid- to late-1800s because a. over 13,000 acres of aboriginal land had been taken and redistributed to arriving british settlers b. a penal colony was established at botany bay c. australia had become a commonwealth, making resettlement easy d. gold was discovered

A settlement boom occurred in Australia during the mid- to late-1800s because gold was discovered.

Explanation:

During the latter half of the nineteenth century, major deposits of gold were discovered mainly in the south-eastern parts of Australia. This discovery of huge deposits of payable gold found in Australia reshaped the economy and the demography of the country. Huge populations from various parts of the world fled in and settled in the region giving rise to the establishment of more and more colonies until the late 1800s

Ithink its deforestation.