The answer is photosynthesis. <span />
This should be the answer for the Krebs cycle
Answer:
3.5 billion years ago, or in the Eoarchean Era.
Explanation:
The first known single-celled organisms appeared on Earth about 3.5 billion years ago, roughly a billion years after Earth formed. More complex forms of life took longer to evolve, with the first multicellular animals not appearing until about 600 million years ago.
The earliest undisputed evidence of life on Earth dates at least from 3.5 billion years ago, during the Eoarchean Era.
Have a fantastic rest of your day!! \(^u^\)
Answer:
C. Large herds of livestock release greenhouse gases
Explanation:
At every stage of production of food, food provisioning releases greenhouse gases into the atmosphere. Farming in particular releases significant amount of methane and nitrious oxide, two powerful greenhouse gases. Agriculture Baat contributes to climate change and is affected by climate change
