Westward expansion meant that the US acquired ever increasing amounts of land, and needed people, farmers, to settle there so it could maintained without a huge military presence
Australia is an island country, and besides the big main island and Tasmania, it has 12,000 islands plus in its territory. Since it doesn't have any land borders, its borderline is actually the sum of all coastlines of all islands in its territory, and that accounts for 70,000 km.
New South Wales is the biggest state in the country, and it occupies 10% of its total land mass. Its border is 4,635 km, which means that it accounts for 6.62% of the total borderline of Australia.
Its 43 in portland right now... normally oregon is cold and very snowy in the mountainous areas and warmer in the winter with drizzles in the lower regions. The summers are hot and there is often rain in areas such as portland, corvalis, and albany.<span />
It should be true as exactly 7.52% is arable land which rounds up to 8%
