Answer:
A. relatively narrow range of temperatures in which oil can form: 90°C to 160°C.
Explanation:
The formation of oil begins in warm, shallow oceans that were present on the Earth millions of years ago. In these oceans, extremely small dead organic matter - classified as plankton falls to the floor of the ocean.
If temperatures of the kerogen are greater than 90°C but lower than 160°C, the kerogen is transformed into oil and natural gas. At temperatures higher than this, only natural gas (literally a gas that's a hydrocarbon) or graphite is formed. This temperature range is known as the "oil window".
This atom with 7 protons and electrons is an isotopic form of nitrogen element.
ISOTOPES:
- Isotopes are atoms of the same element with the same atomic number but different mass numbers.
- Isotopes of the same element differ in the number of neutrons they contain, which is directly responsible for the difference in mass numbers.
- The number of protons of an element is the atomic number of that element. Hence, if an atom has 7 protons and 7 electrons, this means that the atom is that of nitrogen.
- However, the atom has 8 neutrons, meaning that it is an isotope of the same nitrogen element.
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Salt, because from the ocean there can be salt depoists. Dimonds are tons of carbon atom under high pressure so that can count.
Due to tectonic plates consistently moving I will approximately take 63.5 million years