Eucalypt forest fires are bad because the leaves are full of oil and when it's hot, dry and windy, they're extremely flammable and the fire races through the tops of the trees at incredible speeds, and jumps across large fire breaks that appear to be wide enough that they should stop it.
But at the same time the wood is also very dense, so makes great campfire wood, but doesn't burn so much in a forest fire, which is a bit ironic...
At most decent sized companies with a cyber security and network admin team, this is probably the fastest way to get disconnected from the internal corporate network with no way to reconnect.
Pro tip: Duolingo is a game and basically a dead end for properly learning a language. If you want to really learn, you need to build intuition, and that only comes from huge amounts of level-appropriate input. Find yourself some good native language podcasts that are targeted at language learners and native reading material. Search for "Refold" for a better strategy (no affiliation, it's just awesome), and make sure that whatever you do, you enjoy it. Language learning is a marathon, the fun is in the journey, not just the destination.
But at the same time the wood is also very dense, so makes great campfire wood, but doesn't burn so much in a forest fire, which is a bit ironic...