Answer:
Differences in their boiling points
Explanation:
When crude oil is distilled and separated into categories, the categories are characterized by the differences in their boiling points.
At different boiling points, each of the fraction will separate out.
- Crude oil is made up of different fractions of hydrocarbons.
- As the chain length of the hydrocarbon increases, the volatility reduces and boiling point increases.
- Components with short carbon lengths rises out from the column first and are cooled and extracted.
- The categories are thereby, classified based on differences in their boiling points.
Answer:
The correct answer is - d. Jurassic.
Explanation:
1) Carbon dioxide
The carbon atoms present in CO2 are used by the plant in the formation of the organic molecular group (sugar).
2) Chlorophyll
Photosynthetic pigments present in chloroplasts, responsible for absorbing light from wavelengths between blue and yellow and reflecting different shades of green
3) Oxygen
Oxygen is the end product of photosynthesis, the result of the breakdown process of water molecules.
4) Stomata
Stomates have the function of performing gas exchange between the plant and the external environment. This structure is also responsible for the perspiration of the plant.
5) Sunlight
Energy source for the process of transforming light energy into chemical energy
6) Glucose
Final product of photosynthesis. Molecule that will be used by the plant to maintain its vital functions.
7) Water
Oxygen source that will be released as a gas at the end of the process.
In terms of human evolution, the sagittal crest was usually more pronounced and larger in older and robust species compared to younger or gracile species.
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