Answer:
The purpose of the Miller and Urey experiment was to see if organic compounds that could sustain life be created spontaneously in Earth's early atmosphere. They wanted to see if complex molecules of life (eg. Amino acids, etc.) could be created using natural chemical reactions when Earth had harsh conditions.
Explanation:
Answer:
Many of the current bacteria originated from ancestors that were more than 3.5 billion years ago capable of turning Solar energy to fuels.
Explanation:
The method of photosynthesis uses Solar energy to generate sugar in water, carbon dioxide and oxygen as waste products to produce plants, algae, and cyanobacteria.
The answer is most likely the second one. It makes the most sense.
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Answer:
Seasons occur because Earth is tilted on its axis relative to the orbital plane, the invisible, flat disc where most objects in the solar system orbit the sun. ... In June, when the Northern Hemisphere is tilted toward the sun, the sun's rays hit it for a greater part of the day than in winter.