Your answer is A) - a greenhouse effect
that happens also at large scale, when the atmosphere is playing the role of the windows and the climate on earth became warmer.
Answer:
lateral; inferior
Explanation:
In anatomical terms:
- Superior is towards the head, and <u>inferior </u>is towards the feet.
- Medial is towards the centre of the body (belly button) whereas <u>lateral </u>is towards the outside of the body (towards the hip bones and arms, for example)
- Posterior is towards the back (spine), whereas anterior is towards the front (belly)
Therefore, the fingers are lateral (to the side) and inferior (lower) than the heart
Answer: Over 4 billion years ago
Explanation: The chemical reactions between carbon and water is said to bring about life according to scientists. These reactions builds largely upon four families of chemicals (lipids, carbohydrates, amino acids, and nucleic acids).
However, the actual time of life on Earth has varying speculations from different scientists in fields of study (such as molecular biology, chemistry, oceanography, etc).
Furthermore, microfossils within hydrothermal-vent precipitates dated from 3.77 to 4.28 billion years is presumed to inhabit the oldest record of life on Earth. Hence, which is presumed to have occurred after ocean formation 4.4billion years ago.
Thus, the actual date of the chemical reactions that brought about life is not rigid, but presumed to have occurred over 4billion years ago (according to research).
