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The goal of an engineer is to find ways to keep people safe, and to solve their problems efficiently and effectively. Every engineer has a goal, but not every engineer knows what it is. Fewer still don’t have a plan for getting there. Be exceptional—know your goals and make them happen. If you can do this, you’re already well on your way to an extraordinary engineering career.
<em>Please mark me brainliest</em>
A. carbon dioxide It goes into the atmosphere and theres carbon emissions
After all this info you have given me, the correct one is Keystone species. As defined in sources like National Geographic, <span> These are types of plants or animals that play a unique and crucial role in the way an ecosystem functions. Without </span>keystone species<span>, the ecosystem would be dramatically different or cease to exist altogether. I hope this helps you a lot </span>