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Oil extraction is the process of recovering crude oil from underground reservoirs, in recent years, the process of oil extraction has changed, with new technologies and techniques allowing for more efficient and cost-effective oil production.

The process of oil extraction involves drilling wells into the earth and then using various techniques to bring the oil to the surface, and the first step in oil extraction is to identify a suitable location for drilling, which is typically done using geologic surveys and other exploration techniques to locate areas with the potential for oil reserves, next step is to complete the well by installing a casing that helps to prevent the well from collapsing. Technologies such as "hydraulic fracturing," which involves injecting water and sand and assisting in the release of trapped oil and gas, have recently gained popularity.

Hence, it is the process of recovering crude oil from underground reservoirs, in recent years, the process of oil extraction has changed, with new technologies and techniques allowing for more efficient and cost-effective oil production.

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The arteries (red) carry oxygen and nutrients away from your heart, to your body's tissues. The veins (blue) take oxygen-poor blood back to the heart. Arteries begin with the aorta, the large artery leaving the heart.

Answer:

The only reactants of the Krebs cycle proper are acetyl CoA and the four-carbon molecule, oxaloacetate.

Answer:

Explanation:

Is this a question or a joke?

Answer:

The Importance of Biodiversity

Increase ecosystem productivity; each species in an ecosystem has a specific niche—a role to play.

Support a larger number of plant species and, therefore, a greater variety of crops.

Protect freshwater resources.

Promote soils formation and protection.

Provide for nutrient storage and recycling.

Explanation:

Answer:

spinal column is present.

B] The chick will develop four limbs and a beak.

C] It's an invertebrate.

D] It's sexually mature

E] It's about to undergo a metamorphosis.

Answer:

Democracy is one of the universal core values and principles of the United Nations. Respect for human rights and fundamental freedoms and the principle of holding periodic and genuine elections by universal suffrage are essential elements of democracy.

Explanation:

Answer:

Weathering

Explanation:

The answer is weathering because, weathering is the breaking or wearing down of rocks, soil, minerals, and wood. The water wore down the rock, making it smooth, so it connects to the definition that i just gave you.

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Carbon cycle controls the amount of carbon dioxide in the atmosphere. These processes are contributory to the carbon cycle in the       environment.

The carbon cycle is nature's method of recycling carbon atoms, which repeatedly go from the atmosphere into Earth's living things and back into it. The majority of carbon is preserved in rocks and sediments; the remainder is preserved in the ocean, the atmosphere, and living things.

Life on Earth is reliant on the carbon cycle. The quantity of carbon that is naturally released from reservoirs is equal to the amount that is naturally absorbed by reservoirs because nature tends to maintain carbon levels in balance. This carbon balance must be preserved for the earth to continue to support life.

Therefore, the carbon cycle is an important chemical cycle.

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Answer:

It’s B

Explanation:

Answer:

Biotic: We are dependent on plants, because we need them to eat.

Abiotic: We are dependent on water, because we need water to hydrate.

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An example of a biotic and an abiotic factor that humans depend on are -

The biotic factor is a factor that presents in an ecosystem that are living organisms and help in making and shaping ecosystems such as plants, animals, fishes, and others.

The abiotic factor is the nonliving factor that interacts with the living organism or biotic factors to regulate and shape the ecosystems. It includes the carbon cycle, water, oxygen, temperature, and many others.

Thus, the correct examples are:

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Answer:consumers include herbivores, carnivores, and decomposers. If the plants or other producers of an ecosystem were removed, there would be no way for energy to enter the food web, and the ecological community would collapse.All living organisms hold a place in the food chain, structured around the transfer of life-sustaining energy through an ecosystem: from sunlight to plant to rabbit ...

Explanation:

Answer:

C. a mineral

Explanation:

magnetite is a naturally-occuring mineral found in the lithosphere. Like other metals (such as iron), it has electromagnetic properties.

Answer:

The stretching lithosphere is pushed up as the plates move apart.

Explanation:

Mid-ocean ridges are basically underwater mountains that are created with the help of lava convection (which causes the rising of plates) and the diverging (the pulling away) of tectonic plates. This is also how ocean floor spreading happens.

I know that mountains are formed by the converging of tectonic plates, but ocean ridges are NOT created like this.

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Answer:

The circulatory system is extremely important in sustaining life.

Explanation:

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Answer: D

Explanation: just took the quiz

The best solution that meets the energy demands while protecting the environment is to improve energy efficiency and reduce energy waste. Thus, the correct option for this question is D.

The environment may be defined as a sum total of all forms of living and non-living elements and their consequences that significantly influence human life. It includes biotic and abiotic factors. The term environment is first given by Carlyle.

The protection of the environment requires a lot of actions by humans and the cooperation of other living organisms as well. All these actions impact the protection of the environment and improve energy efficiency along with the reduction in energy waste.

Therefore, improving energy efficiency and reducing energy waste is the best solution that meets energy demands while protecting the environment. Thus, the correct option for this question is D.

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Answer: They may be maintained by heterozygote advantage

For example, the allele that causes sickle cell anemia is deleterious if you carry two copies of it. But if you only carry one copy of it and live in a place where malaria is common, the allele is advantageous because it confers resistance to malaria.

Explanation:

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Answer:

It is responsible for protein synthesis, cell division, growth and differentiation.

Answer:

The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information. Nucleoli are small bodies often seen within the nucleus.

answer is A

Explanation:

A. Genetic drift

Answer:

Identification of cockroaches is limited here to  adults. A major source of confusion is the recognition of adults from nymphs.There are  subjective differences, as well as morphological  differences. Immature cockroaches are known as  nymphs. Nymphs closely resemble adults except  nymphs are generally smaller and lack wings and  genital openings or copulatory appendages at the  tip of their abdomen. Many species, however, have  wingless adult females. Nymphs of these may be  recognized by their shorter, relatively broad cerci  and lack of external genitalia. Male cockroaches  possess styli in addition to paired cerci. Styli arise  from the subgenital plate and are generally conspicuous, but may also be reduced in some species.  Styli are absent in adult females and nymphs

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Answer:

The Cambrian Period marks an important point in the history of life on Earth; it is the time when most of the major groups of animals first appear in the fossil record. This event is sometimes called the "Cambrian Explosion," because of the relatively short time over which this diversity of forms appears.

Answer:

Chemical bonds include covalent, polar covalent, and ionic bonds. Atoms with relatively similar electronegativities share electrons between them and are connected by covalent bonds. Atoms with large differences in electronegativity transfer electrons to form ions. The ions then are attracted to each other.

Two of the strongest forms of chemical bond are the ionic and the covalent bonds. Chemical bonds form between two atoms, each with its own electron environment.

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Answer:

the two main types of chemical bonds are:

ionic bonds and covalent bonds.

Answer:

Hey mate !! Answer :- The organism included in kingdom protista are :-  1) Amoeba  2) Algae 3)paramoecium 4)Eugulena etc .  Common character among them is :-  They are unicelluar organisms.  

Explanation:

Answer:

A

Explanation:

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Answer:

gaining modification in their Gene's which helped them to resist that particular pesticide

These surviving insects contributed to an increase in their population by passing genes for DDT resistance to the next generation.

In order to survive, bacteria can create mechanisms known as resistance against antibiotics and antifungals. The germ's resistance mechanisms are determined by the specific proteins that DNA instructs the germ to produce. Many different forms of resistance genes can be found in bacteria and fungi.

Once a bacteria have acquired a resistance gene and incorporated it into its DNA, the bacterium can dominate other bacteria and convey the resistance gene to all of its offspring. Bacteria reproduce quickly, which amplifies resistance.

Hence, These surviving insects contributed to an increase in their population by passing genes for DDT resistance to the next generation.

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Answer:

B.

Explanation: