The Paleozoic Era, which ran from about 542 million years ago to 251 million years ago, was a time of great<span> change on Earth. The era began with the breakup of one supercontinent and the formation of another. Plants became widespread. And the first vertebrate animals colonized land. so its B</span>
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D. Both have effective and growing mass transit systems.
Answer:A First Fleet of British ships arrived at Botany Bay in January 1788 to establish a penal colony, the first colony on the Australian mainland. In the century that followed, the British established other colonies on the continent, and European explorers ventured into its interior.
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