Answer:
oxygen: it was the result of biological activities. There were such stable continental shelf environments, which were rare in the Archean, developed after 2.5 billion years ago, facilitating the growth of photosynthetic organisms and thus oxygen production.
Above 7 is basic. Below 7 is acidic
Answer: the answer is (d)
Explanation:
Answer: answer is below
Explanation:
Molecules in a liquid have more energy than molecules in a solid. And if you heat it up even more, the molecules will speed up so much that they won't be stuck together at all. The molecules in the gas have the most energy.
