Answer:A
Explanation:The anatomy and behavior of that animal's immediate ancestor..
Alot of humans might not now they are even harming the systems by smoking or littering.
Sexual means something physical and sexual reproduction is the creation of an offspring.
Answer:
ovule, plant structure that develops into a seed when fertilized. ... A small opening (the micropyle) in the integuments permits the pollen tube to enter and discharge its sperm nuclei into the embryo sac, a large oval cell in which fertilization and development occur.
Crude oil is <u>refined to separate the chemicals used for gasoline, lubricants, plastics, and other products.</u>
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- In a distillation tower, the crude oil is separated by boiling point after being heated by a furnace.
- The material is then transformed into finished goods like fuels like gasoline and diesel, as well as specialty items like asphalt and solvents, by using heat, pressure, or a catalyst.
- Ethane, liquid petroleum gas (LPG), and naphtha are the three main petrochemical feedstocks generated from crude oil.
- These are mostly employed in the creation of synthetic fibers, plastic polymers, and other petrochemical intermediates.
- With increased global income, demand for these products will only continue to rise.
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