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WER ✔✅✔✅A valence electron is the no. Of electron in OUTER most shell that is associated with an atom, and that can participate in the formation of a CHEMICAL bond if the outer shell is not closed; in a SINGLE COVALENT bond, both atoms in the bond contribute one valence electron in ORDER to form a shared pair. Please MARK as BRAINLIEST ANSWER ❣

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able resource is a natural resource which will REPLENISH to REPLACE the portion depleted by usage and CONSUMPTION, either through natural reproduction or other recurring PROCESSES in a finite AMOUNT of time in a human time scale.

The ozone layer or ozone shield is a region of EARTH's STRATOSPHERE that absorbs most of the Sun's ultraviolet radiation. It contains a high concentration of ozone (O3) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere. The ozone layer contains less than 10 parts per million of ozone, while the average ozone concentration in Earth's atmosphere as a whole is about 0.3 parts per million. The ozone layer is mainly found in the lower portion of the stratosphere, from approximately 15 to 35 kilometers (9.3 to 21.7 mi) above Earth, although its thickness varies seasonally and geographically.[1] The ozone layer was discovered in 1913 by the French physicists Charles Fabry and HENRI Buisson. Measurements of the sun showed that the radiation sent out from its surface and reaching the ground on Earth is usually consistent with the spectrum of a black BODY with a TEMPERATURE in the range of 5,500–6,000 K (5,227 to 5,727 °C), except that there was no radiation below a wavelength of about 310 nm at the ultraviolet end of the spectrum. It was deduced that the missing radiation was being absorbed by something in the atmosphere. Eventually the spectrum of the missing radiation was matched to only one known chemical, ozone.[2] Its properties were explored in detail by the British meteorologist G. M. B. Dobson, who developed a simple spectrophotometer (the Dobsonmeter) that could be used to measure stratospheric ozone from the ground. Between 1928 and 1958, Dobson established a worldwide network of ozone monitoring stations, which continue to operate to this day. The "Dobson unit", a convenient measure of the amount of ozone overhead, is named in his honor.

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tion:Our balance is MAINTAINED by input from vision, nerves of the muscles and joints, and the vestibular system (inner EAR) which is processed into meaningful information by the central vestibular system (brainstem).i HOPE U like my ans

I can't UNDERSTAND this LANGUAGE

While DECIDING the unit for heat (which is calorie), the temperature interval CHOSEN is 14.5oC-15.5oC. Now, we also KNOW that one calorie is defined as the AMOUNT of heat required to raise the temperature of 1 G of water through 1oC.Explanation:Mark me as brainliest and follow me

tion:Ozone is a molecule made up of three OXYGEN atoms, often REFERENCED as O3. Ozone is formed when heat and sunlight cause CHEMICAL reactions between OXIDES of nitrogen (NOX ) and Volatile Organic Compounds (VOC), which are also known as Hydrocarbons. This REACTION can occur both near the ground and high in the atmosphere.

s menstruation occurs?Menstruation is the normal bleeding of the vaginal line which starts between puberty and lasts till menopause. During this PERIOD, the body prepares itself for pregnancy.Every month an egg is released from one of the ovaries at the same time where the uterus prepares itself for fertilized egg. The inner lining of the uterus gets thickened and is supplied with SUFFICIENT amount of blood for the embryo. Since there is no interaction between the egg and the sperms, the fertilization of egg doesn’t takes PLACE. So when the egg doesn’t get fertilized, the uterus lining breaks down slowly resulting in menstruation.

tion:TWO stationary brushes draw current from the BATTERY and supply it to ARMATURE of MOTOR as it is connected at other sides of two halves of split RINGS

a) When the amplitude is DOUBLED the LOUDNESS will be 4 TIMES more.. (b) when the amplitude is tripled the loudness will be 9 times

s are contained within the egg yolk. The egg yolk CONTAINS 1 % MINERALS, with phosphorus as the most abundant mineral component. More than 60 % of the total phosphorus in egg yolks is contained in phospholipids. The MAJOR inorganic components of egg WHITE are sulfur, potassium, sodium, and chloride.

The trophic level of an organism is the position it OCCUPIES in a food WEB. A food chain is a succession of organisms that EAT other organisms and may, in turn, be eaten themselves. The trophic level of an organism is the NUMBER of steps it is from the start of the chain.

ter is a SUDDEN, calamitous event that seriously disrupts the functioning of a community or SOCIETY and causes human, material, and economic or environmental losses that EXCEED the community's or society's ability to cope using its own resources. THOUGH often caused by NATURE, disasters can have human originsplease make me Brainliest

Ans=1 Warm air rises, creating a LOW pressure zone; cool air sinks, creating a high pressure zone. Air that moves horizontally between high and low pressure zones makes wind. The greater the pressure difference between the pressure zones the FASTER the wind moves. Convection in the atmosphere creates the planet's weather.Ans =2 Wind is air in motion. Wind forms when the SUN heats one PART of the atmosphere differently than another part. This causes expansion of warmer air, making LESS pressure where it is warm than where it is cooler. Air always moves from high pressure to lower pressure, and this movement of air is wind.

e the functions performed by the testis in human BEINGS?FOLLOWING are the functions performed by the testis in human beings:Apart from the PRODUCTION of sperms, it also produces the male HORMONE known as androgens.They also produce hormone called testosterone, which is RESPONSIBLE for secondary sexual characters in boys.

d) no such relationship.Explanation:PLEASE mark me brainlist because I need 5 brainlist ANSWERS for the NEXT RANK.

re different types of motion: translational, ROTATIONAL, periodic, and non periodic motion. Translational Motion. A type of motion in which all parts of an OBJECT MOVE the same distance in a given TIME is called translational motion.

but how can we DRAW DIAGRAM by here

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d is the answerExplanation:COMPOUND is heterogeneous EVEN if it SEEMS to be homogeneous and has VARIABLE composition

length = 2lbreadth = 2b 2L + 2b = 1000 l + B = 500 l = 500 - b area of rectangle = l × b . = ( 500 - b)b = 500b-b^2 b^2 = 500b b = 500m l = 500 - 500 = 0M

phyte is a plant that does not have CHLOROPHYLL, obtaining its food from DEAD MATTER, SIMILAR to bacteria and fungi. (Note that fungi are often called saprophytes, which is INCORRECT, because fungi are not plants).

You're the light, you're the nightYou're the COLOR of my bloodYou're the cure, you're the painYou're the only thing I wanna touchNever knew that it could mean so much, so MUCHYOU're the fear, I don't care'Cause I've never been so highFollow me through the darkLet me take you past the satellitesYou can see the world you brought to life, to LIFESO love me like you do, love me like you doLove me like you do, love me like you doTouch me like you do, touch me like you doWhat are you waiting for?Fading in, fading outOn the edge of paradiseEvery INCH of your skin is a Holy Grail I've gotta findOnly you can set my heart on fire, on fireYeah, I'll let you set the pace'Cause I'm not thinking straightMy head spinning around, I can't see clear no MOREWHAT are you waiting for?Love me like you do, love me like you doLove me like you do, love me like you doTouch me like you do, touch me like you doWhat are you waiting for?Love me like you do, love me like you do (like you do)Love me like you do, love me like you do (yeah)Touch me like you do, touch me like you doWhat are you waiting for?I'll let you set the pace'Cause I'm not thinking straightMy head spinning around, I can't see clear no moreWhat are you waiting for?Love me like you do, love me like you do (like you do)Love me like you do, love me like you do (yeah)Touch me like you do, touch me like you doWhat are you waiting for?Love me like you do, love me like you do (like you do)Love me like you do, love me like you do (yeah)Touch me like you do, touch me like you doWhat are you waiting for?

tion:Some plants cannot PRODUCE their own food and MUST obtain their nutrition from OUTSIDE sources—these plants are heterotrophic. This MAY occur with plants that are parasitic or saprophytic. Some plants are mutualistic symbionts, epiphytes, or INSECTIVOROUS.

nahi isliye nahi meine SAB sunanahi aisa nahi hai MUJHE vo nahi pasand KYUKI vo slow hai mujhe purane slow SONG pasand hai bich WALE nahi

llination: Self-pollination is the TRANSFER of pollen from the ANTHER to the stigma of a similar flower.The pollen grains are produced in SMALL quantities.This takes place through contact, wind, and gravity.Self-pollination does not bring variations.Example - Wheat, pea, orchids, peaches, and mulberry, etc.Cross-pollination: Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of a flower of another plant.The pollen grains are produced in large quantities.It occurs through water, wind birds, insects, and bats.Cross-pollination produces variations.Example - Salvia, plums, MAPLES, daffodil, etc.

tion:Hydrostatic pressure.When a liquid is at rest in a vessel, then it exerts pressure at a POINT below its free SURFACE. This pressure is called hydrostatic pressure.mark as brilliant and TAKE THANKS for all QUESTION

re 2 TYPES of COMPOUND PLEASE MARK me as brainliast

s INCLUDE PSILOTUM and bryophytes (mosses and LIVERWORTS). The lichen symbiosis is an association between fungi and algae which develop into distinct morphological forms where the alga develops into a phycobiont and the lichen becomes the MYCOBIONT.

tion:There are many chemical compounds in our environment which are very important for our daily lifestyle.There are many chemical compounds in our environment which are very important for our daily lifestyle.Similarly,the rock salt which is also known as the KITCHEN salt is very important for our COOKING procedures.There are many chemical compounds in our environment which are very important for our daily lifestyle.Similarly,the rock salt which is also known as the kitchen salt is very important for our cooking procedures.The chemical formula of the rock salt is NACL.Which means that it is made out of sodium and chlorine.There are many chemical compounds in our environment which are very important for our daily lifestyle.Similarly,the rock salt which is also known as the kitchen salt is very important for our cooking procedures.The chemical formula of the rock salt is NaCl.Which means that it is made out of sodium and chlorine.Sodium has a off-WHITE COLOUR and chlorine is almost colourless.There are many chemical compounds in our environment which are very important for our daily lifestyle.Similarly,the rock salt which is also known as the kitchen salt is very important for our cooking procedures.The chemical formula of the rock salt is NaCl.Which means that it is made out of sodium and chlorine.Sodium has a off-white colour and chlorine is almost colourless.That's why the mixture of these two chemical elements or the NaCl is also white in colour.

ng to this data, Oxygen get liquified firstExplanation:Because oxygen has LOWEST boiling point AMONG these three.the order of liquification is1st - oxygen2nd - ARGON 3rd - nitrogenHOPE IT HELPS YOU.....MARK ME AS BRAINLIEST....AND FOLLOW ME ......Good day....

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The COLOUR of rock SALT is brown. It is brown in colour due to the IMPURITIES present in it.

tion:Ostensibly, compounds contain more than one type of material. Yet both compounds and elements are considered PURE SUBSTANCES. Pure compounds are created when elements combine permanently, forming one substance. ... In general, a MIXTURE can be separated into its original COMPONENTS, while a pure compound cannot.

CoreExplanation:

a.Law of CONSERVATION of MASSB. POLY ATOMIC ION c.310d.Na₂CO₃, (NH₄)₂SO₄Explanation:

3 rd one answer - B , 4d one answer - d , 5th - organic matter Explanation: 3 rd - Turmeric is yellow in acidic and neutral solutions; is bright red in basic solutionst , 4d - Phenolphthalein [3,3-Bis (4- hydroxyphenyl)- 2 benzofuran- 1-one] is often used as an indicator in acid-base titrations. It turns colourless in acidic solutions and pink in basic solutions. 5th - To IMPROVE the quality of a basic soil, an acid should be added. Slaked lime (Ca(OH)2) and quick lime (CAO) are basic in nature. Urea is neutral. Hence, organic matter is the answer.

hope it will help youExplanation:Lipases split fatty acids off of fats and oils. PROTEASES and peptidases split proteins into small peptides and amino acids. AMYLASES split CARBOHYDRATES such as starch and sugars into simple sugars such as glucose. Nucleases split NUCLEIC acids into NUCLEOTIDES

SolutionPhysical: boiling and melting are physical CHANGES. ...Chemical: The dark grey nail changes color to form an ORANGE flaky substance (the rust); this must be a chemical change. ...Physical: because NONE of the PROPERTIES changed, this is a physical change.Explanation:PLZ follw me