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You may hear the phrase: "We are losing our soil." Sounds serious…but how do we lose soil? Nick Comerford, a member of the Soil Science Society of America (SSSA) and professor at the University of Florida, provides the answer.
Soil erosion is the movement of soil by wind or water, and it's through erosion that soil is "lost." If it is an organic soil, we also lose it by subsidence which happens when an organic soil is drained and its organic matter decomposes.
We lose about 1.7 billion tons of soil per year from just our cropland. That is a lot, but it's better than it used to be. Over the past 25 years we have reduced soil erosion by over 40%, mainly by conservation practices such as conservation tillage, terracing, cover crops, and grass waterways. It can take roughly 500 to 1000 years to form one inch of soil, depending on the climate and the material from which soil forms.
With that in mind it is not hard to see that soil is a non-renewable resource and worth protecting. Since the soil is the source of water and nutrients for plants as well as a bioreactor to purify and filter water, it is crucial to our quality of life.
Soil erosion occurs when the soil is not protected from the elements. Remove the plants and mulch from mineral soil and things start to happen. Raindrops can break apart the soil making it easier to move it by wind and water. The water's ability to enter the soil is reduced and more water now can flow over the top of the soil. Unfortunately, water is powerful and can carry away soil particles if it flows overland. Since water flows downhill, that's where the soil goes once water erosion begins.
Where does the soil end up? It might end up at the bottom of a hill, or it might end up in a river or stream or in the ocean, or it might end up in a reservoir. If the soil ends up in a reservoir, it limits the space for water and has to be removed by a very expensive process called dredging. If the soil dries out while it is unprotected, then wind can pick it up and move it downwind.
Organic soils can be drained. When drained, they decompose and this is called subsidence. In the Everglades area of Florida where soils have been drained for agriculture, organic soils have lost as much as five feet or more of their organic matter. Organic soils are preserved by not draining them. Letting them stay saturated with water allows them to continue to build over time.
Soil erosion is expensive. It costs the United States about $44 billion per year. Preventing erosion means taking care of the soil. That means protecting it with mulch and plants, not plowing on steep slopes, and maximizing the amount of water that enters the soil while minimizing the water that runs over the soil.

Answer: Heat is due to the motion of molecules.

Explanation: Took a quiz about this awhile back lol

Answer:

capillaries

Explanation:

These are thin web connected vessels across the body

The expression “wearing gloves” and “taped fingers” might represent in a real enzyme reaction because the active site of enzymes can adopt these shapes during substrate binding.

The enzyme's active site is a domain in the enzyme that binds to the substrate in order to convert it into one or more products during an enzymatic reaction. The enzyme's active site can adopt the form of fingers in zinc finger domain enzymes.

Therefore, we can conclude that the enzyme's active site of an enzyme may have a zinc finger domain that acts as “wearing gloves” and “taped fingers” during binding.

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While bases take protons in processes, acids donate protons (H+). While bases have a pH of 7 or higher, acids have a pH of 7.

While bases take protons in processes, acids donate protons (H+). While bases have a pH of 7 or higher, acids have a pH of 7. Acids release H+ ions while bases release -OH when they separate in water. While acids render litmus paper red, bases turn it blue.

1) In Experiment 1, the color of the solution changes from light (suggesting base) to dark when the acid is introduced (suggesting acid). As a result, adding the acid in this instance produced an ACIDIC solution.

2) In Experiment 2, the reverse is accurate. The hue stays light even after the addition of the acid (suggesting base). The outcome in this instance is BASIC as a result.

3) When the acid is given to the base to buffer it, this is Experiment 2. As you recall, a buffer solution is one that doesn't alter in pH when an acid or basic is introduced. We may infer that the addition of the acid in Experiment 2 was made to produce a buffer solution because it was done so the pH didn't fluctuate as much as it did in Experiment 1.

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Answer: Find the answer in the problem

Explanation: ∠1 and ∠2 are complementary, and m∠2 = 32 . Find m∠1. m∠1 + 32 = 90 Substitute 32 for m∠2. m∠1 = 58 Subtract 32 from each side.

A phenotype where only a single allele is sufficient for expression.

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Polygenic traits are traits that are influenced by more than one gene such as height or skin color. Because multiple genes are involved, polygenic traits do not follow Mendelian inheritance patterns. A pleiotropic gene is a single gene that controls multiple traits. While studying the genetics of peas.

Gregor Mendel made an interesting observation regarding the colors of different parts of plants. Pleiotropy occurs when a gene affects two or more seemingly unrelated phenotypic traits. Genes that exhibit such multiple phenotypic expressions are called pleiotropic genes. The causative variant of the phenotype requires that two copies appear in an individual.

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Assuming the radius of the cell is given as r, to calculate the volume and surface area of a cell, the formula below is used;

Cells are the basic structural and functional unit of life.

Cells are what all living organisms are made up of.

Organisms that are made up of only one cell are said to be unicellular whereas organisms that are composed of multiple cells are said to be multi-cellular.

To calculate the volume and surface area of a cell, it is assumed that the cell is a sphere. This is because most cells when placed in a liquid medium or suspension, they exert equal forces in all directions, which results in the cells assuming a spherical shape.

To measure the radius of the cell, the cell is placed in a suspension and then viewed through a microscope at a know magnification. The radius of the cell is then taken.

The radius of the cell obtained is then used to calculate the volume and surface area of the cell.

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Answer:

through water

Explanation:

water helps to get energy of anything deal with air

Original signed consent documents include provisions for recontacting subjects it is appropriate to re-contact the individuals who provided biological specimens.

A biological specimen, also known as a biospecimen, is a laboratory specimen used in biology that is kept by a biorepository for research. A sample of such a specimen would be taken from the specimen's source in order to make it representative of all other samples taken from the same source. For research purposes, it is preferable for biological specimens to be preserved so that they maintain their comparability to newly-collected specimens.

Blood, urine, saliva, and a variety of other biological specimens (or biospecimens) are taken from patients as part of routine patient monitoring and care as well as for use in basic, clinical, and epidemiologic research investigations.

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Answer:

I do believe the answer i true im lerning this currently so i do think this is true

Explanation:

It is not accurate to call a virus that kills bacteria a "bacteria eater" as it does not technically eat bacteria but infects it. The virus that enters a cell replicates it's genome inside it causing the cell to be infected with it.

Bacteriophages, or simply phages, are viruses that infect and kill bacteria. Bacteriophage is a name that means "bacteria eater." Although theoretically speaking, viruses don't consume anything, they do kill the bacteria and other infected cells. They have been demonstrated to successfully combat and eradicate multi-drug resistant bacteria and are the most prevalent biological organisms in nature.

Virus particles infiltrate host cells. Once a viral particle penetrates a host cell, its nucleic acid component or it's genome disrupts the processes of the cell, essentially taking over the host cell's proteins and other components to produce new viral particles.

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Answer:

the right answer is 10

Explanation:

The particles are compressed, closer together, and collide more frequently, energy is transferred during collisions.

Because of the tighter spacing between particles, particles move quickly in all directions but collide more frequently than in gases. Because the particles gain kinetic energy as the temperature rises, they move faster, increasing the likelihood of collisions and diffusion.

A solid is made up of very closely spaced-apart particles. Each particle is firmly anchored in situ and is limited to stationary vibration. Many solids contain particles that arrange themselves into crystals in a predictable, repeating pattern.

The molecules will travel quicker and are more likely to collide with one another if there is more energy available to them. Higher temperatures should result in more molecule-to-molecule collisions and more frequent chemical reactions.

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The outcome when two elements are chemically combined is a compound and is based on different types of bonds.

This is referred to as a substance which is formed as a result of the combination of two or more elements  through the various types of bonding.

An element needs to achieve a stable octet configuration which is why they donate or accept electrons. An example of a compound is Sodium chloride which is formed from the reaction between Sodium and chlorine in  which Sodium donates one electron to chlorine which accepts it and forms the compound named above.

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True  his hypothesis, Jake should use the same of amount of water and aspirin for each of the plants in the experimental group.

Biology is the study of living organisms, both extant and hypothetical. Because information in other animals' genetic make-up may contain information about our own, it is crucial to research it. Since an amoeba has just one cell, it is an organism.

When two atoms exchange or contribute their electrons, an ionic connection is created. Atoms can be attracted to one another by van der Waals forces. The electrons are always drawn to both atoms in an ionic connection equally. The process by which atoms or groups of atoms in the compounds are restructured into new substances is known as a chemical reaction.

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Answer: The acid weather the rock away

Explanation: Air pollution have sulfur and carbon which react with water and becomes acid rain.

They climb over other plants to reach sunlight without wasting energy on growing their own self-supporting shoots common convolvulus are climbing and scrambling weeds with large white or blue.

Plants are incredibly important to the world and to all other living things. The oxygen that plants produce from their leaves following absorbing carbon dioxide is what humans and other animals need to breathe. All living things must eat plants in order to survive. Plants can also purify water. They provide a variety of things for the benefit of humanity, including food that we eat, air to breathe, clothing to wrap our bodies, timber, medicine, shelter, and many other things.

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Nucleotides are the monomers of DNA. They consist of five-carbon sugar deoxyribose, a phosphate group and a nitrogenous base attached to the sugar. Nucleotides including adenine A thymine T guanine G and cytosine C  are available.

DNA monomers or nucleotides can bind phosphates and sugars on the outside and nitrogenous bases on the inside where they can bind to other nitrogenous bases to form a ladder. DNA is a polymer. The monomeric units of DNA are nucleotides and the polymers are known as polynucleotides.

Monomers are small mostly organic molecules that can combine with other similar molecules to form very large molecules or polymers. All monomers have the ability to form chemical bonds with at least two other monomer molecules. The unique structure of DNA allows the molecule to replicate itself during cell division. When a cell prepares to divide, the DNA helix splits in the middle and becomes two single strands.

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It is possible to observe the night sky without any special equipment, while a sky chart and a good telescope or pair of binoculars can enhance some observations and make some otherwise invisible objects visible.

The Milky Way, our galaxy, is made up of the stars we see at night in a dark sky. The Sun is one of the many stars that make up the Milky Way. The Sun isn't extremely brilliant compared to other stars, but because of how near it is to Earth, it appears incredibly bright to us.

You can see your stars in one of three ways. One can observe the stars with their eyes, binoculars, or telescopes.

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Explanation: Human cheek cells stained and mounted in glycerine were observed with the help of a compound microscope. The stain that could be used is Methylene blue. Methylene blue stains negatively charged molecules in the cell, including DNA and RNA.

The components of the cell which would be seen are the nucleus, plasma membrane, and cytoplasm.

Active transport always involves the utilization of cellular energy, whereas passive transport does not requires cellular energy.

Active transport moves molecules and ions from lower concentration to higher concentration with the help of energy in the form of ATP. On the other hand, passive transport moves molecules and ions from a higher concentration to lower concentration without any energy.

Passive mechanisms like diffusion use no energy, while active transport requires energy to get done. key differences also include Passive transport moves molecules with the concentration gradient (high to low), while active transport moves molecules against the concentration gradient (Low to High).

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Answer: Urban sprawls are unsustainable.

Explanation: Urban environmental sustainability encourages the revitalization and transition of urban areas and cities to improve liveability, promote innovation and reduce environmental impacts while maximizing economic and social co-benefits. Urban systems are inherently complex. Urban sprawl has significant environmental, economic and social consequences. It leads to higher emissions from road transport and loss of open space and environmental amenities.

Answer: No

Explanation:

Urban sprawl is the expansion that refers to a complex pattern of land use, transportation, and social and economic development usually as a direct effect of population growth on a national level. Urban sprawl is not sustainable for the environment because it creates an increase in water and car usage increasing air pollution, and creates a loss of agriculture capacity of the land. This increase in air pollution and loss of agriculture and woodlands leaves no plants able to create oxygen to sustain a thriving ecosystem. While some may argue that Urban sprawl helps create a better economy, better employment, and better living conditions, in terms of Biology, Urban sprawl is a leading cause of the destruction of our ecosystems.

From youngest to oldest: Conglomerate, Breccia, Shale, Dolostone.

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The way that the respiratory and circulatory systems change throughout the day is that they work  together to supply the body with oxygen, the respiratory system collaborates directly with the circulatory system to do the above.

Poor food and lifestyle choices might make it harder for the respiratory system to work well. For instance, smoking can harm the tissues and cells in the lungs, which can make it exceedingly challenging for the lungs to release carbon dioxide and deliver oxygen to the body.

Note that in the process of their collaboration during the day, Inhaled oxygen travels into blood vessels where it is subsequently circulated to tissues and cells through the body's circulatory system.

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The surface area to volume ratio of the cubes is given below:

The surface area to volume ratio of the cubes is calculated from the respective formulas for surface area and volume of cubes as follows:

The surface area of a cube = 6 * s²

The volume of a cube = s³

where s is the length of a side or edge of a cube

Cube 1:

Surface area = 6 * 1² = 6 cm²

Volume = 1³ = 1 cm³

Surface area to volume ratio = 6 / 1 = 6

Cube 2:

Surface area = 6 * 2² = 24 cm²

Volume = 2³ = 8 cm³

Surface area to volume ratio = 24 / 8 = 3

Cube 3:

Surface area = 6 * 3² = 54 cm²

Volume = 3³ = 27 cm³

Surface area to volume ratio = 54 / 27 = 2

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Answer:

The scapula is a crucial bone for the shoulder joint's proper operation. It engages in six different motions, including protraction, retraction, elevation, depression, upward rotation, and downward rotation, enabling full-functional movement of the upper extremities.

The scapula is a crucial bone for the shoulder joint's proper operation. It engages in six different motions, including protraction, elevation, retraction, depression, upward rotation, and downward rotation, all of which enable full-functional movement of the upper extremities.

A triangular bone called the scapula, sometimes referred to as the shoulder blade, connects the clavicle and the humerus. This bone is situated behind. The stability of the other bones involved in the rhythm of shoulder motion is greatly aided by the scapula.

The scapula covers the posterior upper chest, including the underlying nerves and blood arteries, in addition to supporting the other bones involved in rotating the shoulder.

These are a few potential reasons of scapula pain: damage to the bones supporting the scapula or to the shoulder joint. slinging strapped luggage over the shoulder. repetitive arm actions, such as swimming, throwing, and racquet sports.

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Nucleus division and cytokinesis take place twice, first in meiosis I and again in meiosis II.

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