A n s w e r :  formula of ethanoic acidCH₃COOH.
Acetic acid, systematically named ethanoic acid, is a colourless liquid organic compound with the chemical formula CH₃COOH. When undiluted, it is sometimes called glacial acetic acid. 

To,

The Editor,

The Times of India,

Bahadur Shah Zafar Marg,

New Delhi

Dear sir,

I seek to bring to the notice of the authorities concerned though the columns of your esteemed paper the nuisance of the use of   loudspeakers.

All the cinema houses make use loudspeakers for the publicity of their films. They put the loudspeakers on high pitch and force films songs on the ears of the passers- by. Not only the passers – by, even the people sitting in their houses are disturbed. Different people in different houses are faced with their own problems. The high sound of the loud- speakers disturb them. It disturbs the peace of heart patients who cannot listen to the high sound. It disturbs the peace of heart patients who cannot listen to the high sound. It disturbs the students in particular. Once disturbed, they cannot again concentrate upon their studies.

I request the authorities concerned to take action to the people of the nulsance of loudspeakers.

Yours faithfully,

ABC

Environment is the nature and surroundings in which all plants, animals, humans and other living beings live and operate. Every living and non-living thing is related to environment. Environment plays a major role in giving birth to a new life, in the growth of a life, survival of the life and the over-all well-being of any life. It provides us with fresh air that we breathe, water that we drink, food that we eat and almost all the resources for our survival.

Environment also provides us with several other natural resources that are very important. Natural resources are the resources that environment gives us naturally without we creating it. It includes sunlight, atmosphere, land, water, plants, animals, sea life, minerals, different species and everything that occurs naturally on earth. It provides us with the resources such as fuels, metals, and most forms of energy to use.

1. The molecular formula of Benzene is C₆H₆.
The structure of Benzene is :-


 2.

Image formed by concave mirror is real, inverted and diminished in size than the object.

However, when the object is placed at principal focus and pole, it will form a Virtual, erect and magnified image.

The first person to actually isolate and note the presence of these noble gases was Henry Cavendish.

He removed all the nitrogen and oxygen chemically from a receptacle containing air. The nitrogen was oxidised to NO₂ by electric discharges and absorbed by a sodium hydroxide solution. Remaining oxygen was removed from the mixture by a special adsorber. 1/120 of the gas volume remained unreacted in the receptacle. As we know today, this must have been mainly argon (99.8%) and traces (0.2%) of other noble gases.

Two reasons for late discoveries of noble gases are:

1. They are present in extremely low concentrations in our environment.

2. They are very inert.

When man appeared on this earth for the first time, he was a totally helpless creature. He was terribly afraid of the wild creatures around him.  Natural phenomena like lighting thunder, earthquakes, floods and drought used to frighten him to the bones.  He was at a loss to understand the appearance of solar and lunger ecliplise, falling meteors or comets in the sky.  Some of those who were accepted as wiser amongst the group invented the concept of religion and God.  The ignorant men got something to fall back upon, something to pray to for help in time of crisis, disease and death.  Religion then took several forms and shapes, good as well as bad.

                As civilization advanced further and science started marking its appearance, some people started asking how and why things happened as they did.  They started calling for solid convincing explanations for all observable phenomena.  This new knowledge and old faiths came into clash with each other gave birth to opposing camps of science and religion.  The clash continues even today.

                Science has come to dominate the world in the modern times.  It has made man jump forward with a leap, built up a glittering civilization and opened up innumerable avenues for the growth of knowledge.  Man has reached the moon.  He is exploring space.  Yet there is something essential that is lacking some vital element that is missing.  Science has ignored the ultimate purpose of life.  It looks at the facts alone.  It has cut off all relations from religion which has always helped in the development of humanity.

                The recent advancements in the field of science and technology have further alienated man from religion.  We are at the threshold of a new era.  The scientific achievements have turned  distance into nothing.  These have enabled us to go round the globe within hours and carry on conversation over long distances between places as far away as New York and Moscow.  With the help of science man of situation. But along with all these have come vice, greed, selfishness, and depravity.  Machines have led to capitalism, exploitation, unemployment, evercrowding and slums.  The monster of science and technology has run amok.  It has become a danger to the finer values of life.

                It is clear that humanity has fast withdrawn from God and Church.  Science has occupied the chaste citadel of pious religion.  This has resulted in a confusion in the mind of man.

                Man certainly knows what is right and what is wrong. He knows the differences between virtue and vice.  Everybody has his beliefs, values and ideals.  We may not profess any religion but we cannot afford to be irreligious.

                Whether we are conscious of it or not, most of us worship at the invisible altar of some unknown God, some ideal, personal or international and offer sacrifices to it.  Religion is a safety valve and it will continue ensuring some safe course for humanity.  Voltaire, a great French philosopher rightly remarked, “Even if God did not exist it would be necessary to invent Him.” Science without religion would be complete mess.

                The discord between the scientist and the seer is very unfortunate.  They treat each other with suspicion.  Each feels that there is danger to his existence from the other.  Of late, however, there has been a realization that the energies of both these forces, instead of being contradicting and self-cancelling, be harnessed and channelized for the welfare of humanity.  If science and religion join hands, the world can certainly be transformed into a heaven of peace and prosperity.

                Religion does not necessarily mean dogmatism, fanaticism or superstition, It only aims at providing a moral base to human life-style and actions.  Religion does come into clash with knowledge.  In fact, any knowledge devoid of morality is suicidal.  If true religion or morality is allowed to drive the ship of knowledge in the high seas of life, it would certainly become a boon and blessing.

A linear VI curve has a constant slope and hence a constant resistance. Carbon resistors and metals obey Ohm's law and have constant resistance. This means that the V-I curve is a straight line passing through the origin. An electronic component may exhibit linear characteristics only in a particular region.

A n s w e r:

M a u r y a n empire never sleep in the same room for two nights for security reasons.

It reduced the chances of being assaulted.

Answer:

Because current that flows through the wire is depended on the wire cross section area, the circular shape is the maximized area for a given amount of material; therefore, a cylindrical wire is much more efficient.
 

2. Phenotype of F1 generation: Pea plants with green and inflated pods. A genotype of F1 generation: GgIi Artificial cross-pollination has occurred to produce the F₁ generation

Dhamma is the Prakrit word for Sanskrit term Dharma.

Ashoka's dhamma was not related to the worship of any god or performance of sacrifice. He considered that it was his responsibility, just like a father has towards his children, to instruct the people of the empire so as to reduce conflicts among them. He was inspired by the teachings of the Buddha.

A noun is a part of speech that is used to name a person, place, thing, quality, or action. Examples: Mango, girl, boy, cat, etc. Any name given to a person, thing, animal or place is called a noun

A 360° angle, a full rotation, a complete turn so it points back the same way.

The angle name of half a revolution = Straight angle .

Angle of a complete revolution =360° 

Angle of half a revolution =  360/2 ​=180°= Straight angle

1. Molecular compounds are pure substances formed when atoms are linked together by sharing of electrons while ionic compounds are formed due to the transfer of electrons.
2. Molecular compounds are made due to covalent bonding while ionic compounds are made due to ionic bonding.
3. Molecular compounds are formed between two non-metals while ionic compounds are formed between metals and non-metals.
4. Molecular compounds are poor electrical conductors while ionic compounds are good conductors.
5. Molecular compounds can be in any physical state ‘“ solid, liquid, or gas. Ionic compounds are always solid and crystalline in appearance.
6. There are a lot of molecular compounds than ionic compounds.

One cannot distinguish whether a plant is C3 or C4 by observing its leaves and other morphological features externally. Unlike C3plants, the leaves of C4 plants have a special anatomy called Kranz anatomy and this difference can only be observed at the cellular level. For example, although wheat and maize are grasses, wheat is a C3 plant, while maize is a C4 plant.