polythene pollution

Let us learn about polythene pollution

Polythene pollution has drastically disturbed human life style. Polythene material can be seen spread over in the neighborhood, in the streets, in the rivulets, river-banks of the small or big rivers. Many rivers all are covered with a thick layer of polythene material. Degradation of Polythene is a great challenge for us as the materials are increasingly used. The people do not know about the effects of improper waste disposal. People therefore ignore & dump the polythene bags carelessly. Strictly Emphasis should be put on the use of paper bags. This is because the paper bags are also light & they can easily decompose, Globalization has added to this problem in a big way. Electronic gadgets all are designed with a view to use & throw, because the repairs are costly. western countries like USA, Garbage disposal problem has reached a horrifying level. But they have developed a scrupulous (meticulous) system of garbage disposal with periodical review. Here in India we need to prepare ourselves for this gigantic onslaught of pollution. Enough is enough! We need to be disciplined & we must cultivate civic sense to save India from this disaster. In order to fight the menace of Polythene pollution, the Local Self Government institutions should support us.

• Plastic polythene bags should banned altogether or by levying tax on plastic bags, polythene pollution may be checked.
• Polythene materials may be considered for recycling. Very less fractions of polythene containers can be reused by recycling like polythene containers for milk, soft drink, milk products, & water bottles. People should be encouraged to use wax paper instead of polyethylene products, to use cloth or hemp or jute or paper bags instead of plastic bags.
• More public awareness has to be created educating, explaining about the harmful impact of polythene pollution.

In our next blog we shall learn about biology form 4 notes I hope the above explanation was useful.Keep reading and leave your comments.

importance of biology

In our previous blog we learned about importance of physics & now let us learn about importance of biology

The biological disciplines imply a major responsibility for the protection & the welfare of all the living species. The knowledge about the diversity of life forms & their conservation-exploitation is very important for our day by day life.

Have you gotten sick some time? Yes, all we have got ill some times & in order that our doctor was able to accomplish a diagnosis from our illness, doctor had to be familiar with the normal organic functions that we consider within the homeostatic parameters. This normal state or homeostasis is only investigated by Biology.

The study on the unique of diseases & plagues is also answerable by means of Biology, for example the etiology of cancer functional problems, , infections, the damage to fruits, the pathologies of farm animals, plants, trees, etc.

Food resources & quality, factors that cause illnesses, sustainable exploitation of natural resources, plagues, the enhancement & development of useful species, the discovery & production of medicines. The study of the living beings, their inheritance, etc., all is fields of research through Biology.

In our next blog we shall learn about ostwald process I hope the above explanation was useful.Keep reading and leave your comments.

conditional probability calculator

Let us learn about conditional probability calculator

Probability is the bane of the age,' said Moreland, now warming up. 'Every Tom, Dick, & Harry thinks he knows meaning of probable. The fact is most of the people have not the smallest idea what is going on round them. Their conclusions about life are depends on utterly irrelevant - and usually inaccurate - premises.

The probability of 7 when rolling 2 die is 1/6 (= 6/36) because the sample space includes of 36 equiprobable elementary outcomes of which 6 are favorable to the event of getting 7 as the sum of 2 die. Denote this event A: P (A) = 1/6.

Let us take another event B which is having at least one 2. There are 36 elementary outcomes of which 11 are favorable to B & therefore, P (B) = 11/36. We do not know whether B happens or not, but this is a legitimate question to inquire as to what happens if it does. More particularly, what happens to the probability of A under the assumption that B took place?

The hypothesis that “B” took place reduces the set of possible outcomes to 11. Of these, only 2 – 25& 52 - are favorable to “A”. Since this is logical to assume that the 11 elementary outcomes are equiprobable, the probability of “A” under the assumption that B took place equals 2/11. This probability is denoted P (A|B) - the probability of an assuming B: P (A|B) = 2/11. More explicitly P (A|B) is said to be as conditional probability of an assuming B. Of course, for any event A, P (A) = P (A|Ω), where, by convention, Ω is the universal event - the whole of the sample space - for which all available elementary outcomes are favorable.

In our next blog we shall learn about conditional probability distribution I hope the above explanation was useful.Keep reading and leave your comments.

importance of carbohydrates

Let us learn about importance of carbohydrates

Glucose is the main source of energy that constantly replenished through simple carbohydrates. When there is a shortage of glucose the body accommodates into its glucose energy reserve to ensure adequate levels of blood sugar. Glucose is stored mostly in the liver & in smaller amounts in muscles as a molecule known as Glycogen. Glycogen is broken down & released into the blood stream. As the body continues to use its reserves, Glucose does so at the expense of proteins in the muscles, weakening them by damaging the muscle tissues, depriving the brain of its glucose requirement, & reducing levels of glucose in the red blood cells.

Fiber from the carbohydrates keeps the bowel functioning smooth & reduces the risk of digestive system complications. Preventing ketosis is another important cause to include carbohydrates in a healthy diet. Ketosis is a serious condition that occurs when our diet is very low in carbohydrates, resulting in raised levels of chemicals is said to be as ketones in the blood as the body turns to fat for energy. Carbohydrates also aid in consumption of other nutrients.

In our next blog we shall learn about comparative essay example I hope the above explanation was useful.Keep reading and leave your comments.

help Probability calculator

Let us learn what help Probability calculator can assist

How is probability used in the real world?

Mathematical Probability calculator is all around us. For instance, Batting averages, tell us an estimation of how likely it is that any particular baseball player will get a hit. The numbers are applied to decide who is a better batter & how much baseball player are worth when it comes time to trade them or negotiate a new contract.

Lotteries are based on probability & whoever is running the lottery depends on knowing how many tickets they have to sell & the chances someone will win. They use this to decide how much money to pay out & how much profit they will keep.

Sunspots, Earthquakes & weather are all random appearing processes, but all can be analyzed using probability.

In our next blog we shall learn about equivalent fractions worksheets I hope the above explanation was useful.Keep reading and leave your comments.

ionic equilibrium

Let us learn about ionic equilibrium

This kind of equilibrium is observed in substances which undergo ionization easily, or in polar substances in which ionization can be considered. Ionic & polar substances are more easily soluble in polar solvents due to ease of ionization taking place in the solvent medium. With the dissolution of ionic & polar substances in the solvent, these solutions become rich in mobile charge carriers (ions) & thus can conduct electricity. Substances, that are capable of conducting electricity are said to be as electrolytes while those substances which are non-conducting said to be as non-electrolytes.

In our next blog we shall learn about male reproductive system diagram I hope the above explanation was useful.Keep reading and leave your comments.

online physics help

Hi Friends!!!

How many of you like Physics subject?

There many website which provides Free chemistry help, Free physics help, Free geometry help, Free fraction help, Free calculus help, so on.

Physics tutors students tell us that online tutoring has characteristics their tutors do not offer. The online tutoring programs are always available 24/7. The online tutoring program has a "patient" character & is nonjudgmental. Physics tutors allows learner to be anonymous & allows students to do many things at the same time. Physics tutors bring into line online information to the learner's learning program.

Tutors are all certified tutors & work smartly. Tutors are available at any times that are convenient for both learners & tutor.

• Successful one-to-one learning
• Direct contact with preferred tutor a minimum of 1 hour each week
• "Talk" to your tutor 24/7 through skype, email so on
• embraces expanded access to Physics tutors lesson modules
• Tutors accentuate skill building & reinforcement of concepts
• projects aligned to Physics tutors lesson modules
• Online communication & completion of projects through the Physics tutors bulletin board/chat room, white board so on
• Parents can get access & can view assignments & tutor comments & grades of their children.

In our next blog we shall learn about mean and standard deviation I hope the above explanation was useful.Keep reading and leave your comments.

natural rubber

Let us learn about natural rubber.

Raw natural rubber has low tensile strength & it is abrasion resistant. Raw natural rubber absorbs large quantities of water. 0.915 is its specific gravity. Natural rubber is insoluble in alcohol, water, acetone, dilute acids & alkalis. Natural rubber is soluble in ether, carbon disulphide, carbon tetrachloride, petrol and turpentine and other hydrocarbons like benzene, toluene, gasoline & lubricating oils. Pure rubber is a amorphous solid, transparent, which on stretching or prolonged cooling becomes crystalline. Natural rubber is basically a thermoplastic but with vulcanization Natural rubber turns to thermoset. Plantation rubber also called Natural rubber

In our next blog we shall learn about alkanols I hope the above explanation was useful.Keep reading and leave your comments.

reactivity of elements

Let us learn about reactivity of elements.

Reactivity of elements table-non metals

The reactivity of non-metals decreases down the series. Fluorine is the most excited or we can say the most reactive non metal where as Phosphorous is the least reactive one. The non metals above in the series can exclude or displace the non-metals below in the series.

Example for reactivity of elements table-non metals: 2KI + Cl₂ → 2KCl + I₂

For metals in a granted period reactivity is determined by the number of electrons that must be transferred to a nonmetal. Those metals with only one outer shell electron will be more reactive than any other metals with two or more electrons.

Reactivity of elements table- metals

The metals are arranged in subsiding (decreasing) order of their reactivity. The most re-active element is at the top level, it is Sodium (Na) The least reactive element is at the bottom level, it is Gold (Au). Hydrogen is a non-metal but it is included in this series as it can form a positive ion by losing an electron. Metals above hydrogen can displace metals beneath (bottom) it from the solutions of their salts.

Example for reactivity of elements table- metals: - Zn + CuSO₄ → ZnSO₄ + Cu

In our next blog we shall learn about deceleration formula I hope the above explanation was useful.Keep reading and leave your comments.

evaporation rate

Let us learn about evaporation rate

What happens when you hang your cloths to dry? What happens when you heat water more than 100 degree? why does the quantity of lake water reduce during summer?

Temperature, surface area, rate of airflow, etc are the factors effecting evaporation.

Evaporation is a process of converting liquid state molecule into gases state.

evaporation rate depends on the amount of the intermolecular forces and the rate at which heat is supplied to the liquid.

In our next blog we shall learn about hydrogen iodide I hope the above explanation was useful.Keep reading and leave your comments.

advantages of wind power

Let us learn about advantages of wind power

1. It is ample and so is widely available anywhere in the world. It is available free & without using modern technique it can be captured.
2. It is very cheap. villages can make good use of range of wind turbines
3. It doesn’t harm ecosystem & doesn’t cause pollution.
4. It is also a permanent type of energy.
5. It uses a renewable source of energy.

In our next blog we shall learn about radian to degree I hope the above explanation was useful.Keep reading and leave your comments.

properties of metals and nonmetals

Let us learn about properties of metals and nonmetals.

A metal is a chemical element which is a good conductor of both heat & electricity and forms cations and ionic bonds with non-metals

Many Precious metals on the earth are getting exhausted and there will be no metals left on earth soon. Day-by-day mines are getting deeper and extraction of precious metals is getting exhausted.

In our next blog we shall learn about reversible reactions I hope the above explanation was useful.Keep reading and leave your comments.

uses of nitrogen

Hi friends!!!

Can you tell me what is air?

Air is a mixture of many gases like nitrogen, oxygen, argon, carbon dioxide etc.


Let us learn about uses of nitrogen.

Nitrogen can be found in both animals & plants.

Nitrogen is used in light bulbs in place of argon.

Nitrogen is used to pack foods because it contains oxidation of foods to maintain their freshness.

Nitrogen is essential in the manufacturing of electronic parts like, transistors, integrated circuits and diodes.

Nitrogen is very important for pollution control

Nitrogen is used scientific research. Etc

In our next blog we shall learn about reversible reaction I hope the above explanation was useful.Keep reading and leave your comments.

formula for mass

Let us learn about Mass.

The mass number (A), also called atomic mass number or nucleon number, is the total number of protons and neutrons in an atomic nucleus

A mass formula is an equation or set of equations in physics which attempts to predict the mass or mass ratios of the subatomic particles.

formula for mass 1 u= mass of ¹²C₆ atom / 12

In our next blog we shall learn about mass moment of inertia I hope the above explanation was useful.Keep reading and leave your comments.

ammonium bromide

Let us learn about ammonium bromide

Ammonia bromide, NH4Br, is the ammonium saltiness of hydrobromic dissolver. The chemical crystallizes in whitened prisms, possessing a saline discernment; it sublimes on evaporation and is easily explicable in facility. On exposure to air it gradually assumes a chromatic variety because of the oxidization of traces of bromide to element.

Ammonium bromide is misused as a beam retardant especially for chipboard. It is victimized in manufacturing photographic chemicals and emulsions.

In our next blog we shall learn about organic-reactions I hope the above explanation was useful.Keep reading and leave your comments.

examples of renewable resources

Let us learn about examples of renewable resources

Few elemental renewable resources much as energy power, unprocessed thing, timber, and biomass must be old with repair to refrain prodigious the power to replenish them. A invigoration interval provides a systematic way of scheming renewability.

" Biofuel

" Biomass

" Geothermal

" Hydroelectricity

" Solar spirit

" Tidal knowledge

" Wave knowledge

" Wind superpower

In our next blog we shall learn about photoautotrophs I hope the above explanation was useful.Keep reading and leave your comments.

microscope magnification

Let us learn about microscope magnification

The linear magnification m, for the image formed at near point D, by a simple microscope can be obtained by using the relation

m= v/u = v(1/v - 1/u) =(1 – v/f)

Now according to our sign convention, v is negative, and equal to the magnitude of D. Thus, the magnification is

m = (1 + D/f)

Note that

m = h’/h

Where h is the size of the object and h’ is the size of the image. This is also ratio of the angle subtended by the image to that subtended by the object, if placed at D for comfortable viewing. The magnification m if the image is at infinity is

m = D/f

This is one less than the magnification when the image is at the near point. But viewing is more comfortable and the difference in magnification is usually small this is why the image is generally assumed to be at infinity.

In our next blog we shall learn about letter of support example I hope the above explanation was useful.Keep reading and leave your

diatomic molecule

Let us learn about diatomic molecule

Molecules having two equal and opposite charges separated by certain distance are said to possess an electric dipole. In the case of such polar molecules, the centre of negative charge does not coincide with the centre of positive charge. The extent of polarity in such covalent molecules can be described by the term Dipole moment.

Dipole moment can be defined as the product of the magnitude of the charge and the distance of separation between the charges.

It is represented by the Greek letter 'm'. Mathematically it is equal to

dipole moment (m) = charge (e) x distance of separation (d).

It is expressed in the units of Debye and written as D

(1 Debye = 1 x 10^-18e.s.u cm)

Dipole moment is a vector quantity and is represented by a small arrow with tail at the positive centre and head pointing towards a negative centre.

In our next blog we shall learn about acyl group I hope the above explanation was useful.Keep reading and leave your

Formula Molecular

Let us learn about Formula Molecular

Molecular Formula of a compound shows how many atoms of each element are present in a molecule of the compound.

An expression which states the number and type of atoms present in a molecule of a substance.

A formula in which only the elements and number of atoms of each element are shown, e.g. C5H12

The mass of an atom of an element is called its atomic mass. The unit of atomic mass is any form of a mass like milligram, gram.Molar of a solution is defined as the quantity of gram-moles of solute softened in 1 liter of a solution. Molecular is as the grouping of atoms. A molecular is a combination of atom. Under the normal condition the elements are present in free state of an atom. The molecular mass of a matter is the calculation of the atomic masses of all atoms in a molecule of the substance.

A molecular shows all the physical and chemical properties of that matter. Molecules can obtain by same or different combination of elements.

Molecule formula is related to empirical formula.

Molecule formula = n * empirical formula

Where

n= (molecular mass / empirical formula mass)

In our next blog we shall learn about kingdom plantae

I hope the above explanation was useful.Keep reading and leave your comments.