Answer: Greenhouse gases arise naturally, and are part of the make-up of our atmosphere. Earth is sometimes called the “Goldilocks” planet – it’s not too hot, not too cold, and the conditions are just right to allow life, including us, to flourish. Part of what makes Earth so amenable is the naturally-arising greenhouse effect, which keeps the planet at a friendly 15 °C (59 °F) on average. But in the last century or so, humans have been interfering with the energy balance of the planet, mainly through the burning of fossil fuels that give off additional carbon dioxide into the air. The level of carbon dioxide in Earth’s atmosphere has been rising consistently for decades and traps extra heat near the surface of the Earth, causing temperatures to rise.
Explanation:
Answer:
It's basically saying that from the information we currently have evolution is the best idea of where we can from. Of course then Religion comes in to play. Most people believe that God made us but we can't be sure of that because we don't have certified proof ands what science wants.
The organisms that is most likely not functioning as a keystone species in its ecosystem is; the Zebra mussels-Compete with native species, reducing the biodiversity of the Great Lakes ecosystem. Keystone species are plants or animals that play unique and vital role in the way an ecosystem functions. Without keystone species, the ecosystem would be dramatically different or cease to exist altogether.
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I'm liking D for the third one but you might be correct.
Explanation:
It would be Watson and Crick in Feb 28 1953