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The sulfuric acid is reused in place of the sulfur trioxide to leach more zinc oxide .

The sulfuric acid is regenerated and recycled to the leaching step .

There is usually an option to produce audible representing the number of ionization events detected .

They lay their eggs in cavities in moist soil , where they hatch into larvae that seek out streams or underground seepages , before metamorphosing into adults .

An important advantage of hydroelectric dams is their ability to be used as a peaking power plant .

The particle in a 1 - dimensional well is the most simple example showing that the energy of a particle can only have specific values .

The particle in a one-dimensional potential energy box is the most mathematically simple example where restraints lead to the quantization of energy levels .

Tjapaltjarri paints abstract images of sacred stories and songs from his family 's Dreaming .

The pelvic region of the trunk is the lower part of the trunk , between the abdomen and the thighs .

Pelvis can mean the lower part of the trunk of the human body , between the abdomen and the thighs .

In the 12th century the first stone church was built with the formation of the parish Ljungby socken .

After enamel and dentin are destroyed and cavity reaches the dental pulp and nerves of the tooth , the tooth becomes sensitive since the nerves are exposed .

This can be done reasonably quickly , even for very large numbers , using modular exponentiation .

Both of these calculations can be computed efficiently using the square- and - multiply algorithm for modular exponentiation .

Hummingbird beaks are flexible and their shapes vary dramatically as an adaptation for specialized feeding .

Igneous rocks are formed when molten magma cools , either above or below the surface .

Both species bore a passing or superficial resemblance to a very small , dog-sized saber - toothed cat .

The algae benefit from a safe place to live and consume the polyp 's carbon dioxide and nitrogenous waste .

Procaine was first synthesized in 1905 , shortly after amylocaine .

Zinc sulfate can be used to supplement zinc in the brewing process .

The illegal maneuver of spitting a colored liquid into the face of an opponent in professional wrestling .

Altogether , this fauna is massively dominated by large herbivores and generally lacks terrestrial carnivores .

The folds of cartilage surrounding the ear canal are called the pinna .

The outer ear is the folds of cartilage surrounding the ear canal .

The drug is commonly used to treat attention - deficit hyperactivity disorder and narcolepsy .

When a conjecture has been proven , it is no longer a conjecture but a theorem .

Psychiatric hospitals used to be called lunatic asylums .

Modern psychiatric hospitals evolved from , and eventually replaced the older lunatic asylums .

Drug trafficking and illicit drug use is a significant problem in Russia .

The release of pituitary hormones by both the anterior and posterior lobes is under the control of the hypothalamus , albeit in different ways .

They feed on insects and fruit , and their broad bills and weak legs reflect their diet and arboreal habits .

There are no specific antiviral drugs for dengue ; however , maintaining proper fluid balance is important .

The nasal cavity is divided into two segments : the respiratory segment and the olfactory segment .

During the epidemic , there were only a small number of men who remained healthy and bore the responsibility of caring for the sick .

A lot of electricity is used in arc welding .

To prove this with algebra , start with the equation

The mercury inside the tube is toxic and makes these bulbs hazardous waste .

Because they contain mercury , many fluorescent lamps are classified as hazardous waste .

The idea behind tinnitus maskers can be explained by a light analogy .

She died of esophageal cancer in Tokyo on 11 January 2014 , aged 80 .

Copper forms coordination complexes with ligands .

Ubuntu splits all software into four different categories to show differences in licensing and the amount of support available .

Vanth was found at 0.25 arcseconds from Orcus with magnitude difference of .

The later half of the period was an episode of intensive orogeny on virtually all continents .

Tests tubes are often preferred above beakers when multiple small chemical or biological samples have to be handled and / or stored .

Jaspillite is also a sedimentary rock . in certain lead-zinc ore deposits .

This daisy may be used as a potherb .

The following table contains a list of point groups labeled using the Schoenflies notation , which is common in chemistry and molecular spectroscopy .

Amphibians are the only vertebrates to go through metamorphosis .

Of the total exploitation length of route 72 % or 2117 km are in common carrier service and does not include industrial lines .

Glow fuel is a mixture of methanol , nitromethane , and oil .

Lateral undulation is the sole mode of aquatic locomotion , and the most common mode of terrestrial locomotion .

In genetic sex-determination systems , an organism 's sex is determined by the genome it inherits .

Changeable optics filters are used in the colorimeter to select the wavelength which the solute absorbs the most , in order to maximize accuracy .

Interchangeable bits allow the use of powered screwdrivers , commonly using an electric or air motor to rotate the bit .

One balances a chemical equation by changing the scalar number for each chemical formula .

Genets are highly agile creatures , with quick reflexes and exceptional climbing skills , and are the only viverrids that are able to stand bipedally .

Ring - necked snakes are fairly similar in morphology throughout much of their distribution .

The kinetic energy of a rotating flywheel is

Owing to the Kuril-Kamchatka Trench , deep-focus seismic events and tsunamis are fairly common .

In Australia , stillbirth is defined as a baby born with no signs of life that weighs more than 400 grams , or more than 20 weeks in gestation .

In Australia , any stillborn fetus that weighs more than 400 grams and lived in the mother for more than 20 weeks must be reported to the government .

This list is arranged by drainage basin , with respective tributaries indented under each larger stream 's name .

After his retirement he wrote other chess treatises , but his isolation prevented him from assimilating the positional ideas of the new generation of chess-players .

Instant messaging allows instantaneous communication between a number of parties simultaneously , by transmitting information quickly and efficiently , featuring immediate receipt of acknowledgment or reply .

Web feeds are designed to be machine readable , so there is no requirement that they be destined only for user consumption .

Intraspecific competition occurs when members of the same species compete for the same resources in an ecosystem .

Rainbow lorikeets are monogamous and pair for life , and the two sexes look almost identical .

Coconut lorikeets are monogamous birds , choosing only one partner for their whole life .

Blood can leave the erectile tissue only through a drainage system of veins around the outside wall of the corpus cavernosum .

Blood can leave only through a system of veins around the outside wall of the corpus cavernosum .

The earliest settlers to the district arrived in the 1840s , and farmed the area with wheat and sheep predominantly .

The same terminology is sometimes used for functions that yield real , or other signed values .

Lithium carbonate is somewhat toxic .

Omega Centauri is so distinctive from the other galactic globular clusters that it is thought to have an alternative origin as the core remnant of a disrupted dwarf galaxy .

Insect galls are usually induced by chemicals injected by the larvae or the adults of the insects into the plants , and possibly by mechanical damage .

It is made by reacting hydrogen bromide with sodium hydroxide .

NaBr is produced by treating sodium hydroxide with hydrogen bromide .

Embryo transfer can be performed after various durations of embryo culture , conferring different stages in embryogenesis .

As Coordinating Minister of Strategic Sectors he was responsible for building several hydroelectric stations .

Protactinium is both toxic and highly radioactive and thus all manipulations with it are performed in a sealed glove box .

Protactinium is both toxic and highly radioactive .

From the hypostyle hall , one enters the second pillared hall .

Young open clusters may still be in the molecular cloud from which they formed .

Young open clusters may be contained within the molecular cloud from which they formed , illuminating it to create an H II region .

Cadmium telluride is used to make electricity in solar cells .

Type 1 diabetes is a condition caused by a lack of insulin in the body .

The human vagina is an elastic , muscular canal that extends from the vulva to the cervix .

The vagina is an elastic , muscular tube .

Characteristic features are a very long filiform tail , reduced eyes , and a low number of pectoral - fin radials .

Epoxides can be made by oxidation of alkenes .

Other nebulae form as the result of supernova explosions ; the death throes of massive , short- lived stars .

Trapping headbutts are where a wrestler holds both of the opponent 's arms under their own and hits the opponent with a series of headbutts .

s of 2010 , there is no vaccine that prevents syphilis .

The thou , or mil , is most commonly used in engineering and manufacturing .

There are different types of encyclopedias .

There are some broad differences between encyclopedias and dictionaries .

The stated aim of the list was to protect the faith and morals of the faithful by preventing the reading of theologically , culturally , or politically disruptive books .

The triggers for precipitation of uric acid are not well understood .

For some species sex is not determined by inheritance , but instead by environmental factors experienced during development or later in life .