Answer:<em> The Miller-Urey experiment provided the first evidence that organic molecules needed for life could be formed from inorganic components. Some scientists support the RNA world hypothesis, which suggests that the first life was self-replicating RNA.</em>
Explanation:
Simple organic compounds might have come to early Earth on meteorites.
Answer: The sun
Explanation:
Plants use the sun to create their food through the process of photosynthesis
An inactive(dead) version of the disease is given, so that the body can build antibodies but now suffer from the symptoms
