Tetra means four and valency means the number of electrons gained or losed or shared to attain stable configuration. So, tetravalency refers to the phenomenon of sharing four electrons by an element to attain stable condition. A carbon atom .....

प्रश्नले मागेको कुरा प्रष्ट भएन त .....

To find the number of ropes of a (5/6) m that we can make from 25m, We divide it by the length(5/6)  from 25. So, we can make 25/(5/6) = 25 x 6/5 = 30 ropes from the 25 m rope each of whose length is (5/6) .....

The purpose of your digestive system is to take in food from your environment and break it down on both macroscopic and molecular levels.   Through the process of digestion, you .....

Plastics have several advantages when compared to the metal alloys traditionally used in aeroplane: 1) They are lightweight. Some plastic components can be as much as ten times lighter than their metal counterparts. For each pound of weight reduced .....

She died on 22 April .....

Two vectors are said to be perpendicular to each other if the angle between them is 90o.  Let a→ & b→ are two vectors then, they are said to be perpendicular if a→.b→= .....

We know that Nepal is famous for its greenery. A huge section of the land is covered by forest, however, during recent years, the coverage is rapidly declining. Some of the measures that may be taken to preserve them are: work along with the .....

Consider two bodies of masses m1 and m2. distance between them (d) = 4 m gravitational force (F) = 25 N We have formula,      F = G m .....

Properties that are meant for all may be termed as public properties. Public properties are important for the following reasons: they bring the members of all communities together. they help built mutual trust and cooperation. they maintain .....

In isosceles right angled triangle, p = b. We know, Area of right angled triangle = 1/2 x p x b or, 128cm2 = 1/2 x p x p or, p2 = 256cm2 or, p = .....

Metals are electropositive elements.

They are characterized by bright luster, hardness, ability to resonate sound. They are good conductor of heat and electricity. .....

Pevement epithelium: Cells are flat with flattened and oblong nuclei. It is called pavement epithelium due to its tile-like appearance. This epithelium is associated with filtration and .....

माथि दिइएकै आधारमा वर्णन गर्नुहोस् है त .....

It means he is doing some good deeds .....

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Here, Σfx = 240 + 15p, N = 17 + p and, Mean = 14.25 p = ? We know, Mean = Σfx/N or, 14.25 = (240 + 15p)/(17 + p) or, 242.25 + 14.25p = 240 + 15p or, 0.75p = 2.25 or, p = .....

Here, Given: In ∆PQR, ∡Q = ∡R. To prove: ∆PQR is an isosceles . Construction: Draw .....

In medieval Nepal, complete monarchical system existed in Nepal during medieval age. Kingship was hereditary. During the medieval age kings of different dynasties Malla, Sen and Shah had ruled over Nepal. The political condition of Nepal was .....

Here, Remainder is 35, so 323 - 35 = 288 539 - 35 = 504 827 - 35 = 792 The factors of 288 = 2⨯2⨯2⨯2⨯2⨯3⨯3 504 = 2⨯2⨯2⨯3⨯3⨯7 792 = 2⨯2⨯2⨯3⨯3⨯11 The HCF of 288, 504 and .....

Here, equation of the given circle is   x2 + y2 - 6x - 2y + 6 = 0. Comparing this with x2 .....

Here,  Given: E and F are the midpoints of AB and AC respectively. To prove: Area of ∆BOF = Area of ∆COF. Proof:   Statements Reasons 1. AF is a median 1. Medians of a triangle are .....

Let length of sides of square ABCD be a. Then, BD = √(BC2 + CD2) = √(a2 + a2) = a√2. Now,  Area of ∆CDF = √3/4 ⨯ (CD)2  = a2√3/4. Again, Area of ∆BED .....

Here, Difference of two angles is A - B = 63g88'33" = (63+ 88/100 + 33/10000)g = 63.8833g = 63.8833 x 9/10=  57.5o i.e; A - B = 57.5o...........(i) And we know,  A + B = 90o..................(ii) Solbinf (i) .....

Lamps of all types⟹ electricity to light Motors including pumps, drill machines⟹ electrical to mechanical Lifts — electricity to potential EVs ⟹ electricity to kinetic energy Battery — electricity⟹ chemical energy for .....

Here,     (x + 3)(x - 2) = x + 19 or, x(x - 2) + 3(x - 2) = x + 19 or, x2 - 2x + 3x - 6 - x - 19 = 0 or, x2 + 0.x - 25 = 0 Comparing this equation with ax .....

Here,     (3x + 1)/(5x - 3) = x/2 or, 2(3x + 1) = x(5x - 3) or, 6x + 2 = 5x2 - 3x or, 5x2 - 9x - 2 = 0 Comparing this equation with ax2 .....

A wire associated with a single phase is called a phase wire. A phase wire carries current only meant for that phase. Electrical power can be supplied to your home via a single-phase 2-wire connection or a three-phase 3- or 4-wire connection. Fuse .....

Here, The image of a function f(x) = 1 + 2sinx is 2. i.e; 2 = 1 + 2 sinx or, 1 = 2 sinx or, sinx = 1/2 or, sinx = sin30o, sin150o. or, x = 30o or, 150o. .....

यिनै नियमका आधारमा दैनिकी लेख्नुहोस् है त .....

Fish is a great source of protein and provides people their basic dietary needs on a daily basis. A large number of people around the world rely on fish as their main source of protein. But this also comes at a cost. “Due to overfishing, .....

A beautiful garden was grown in their .....

Fruits are beautiful gift of nature having many varieties and many different tastes. They have a great storage of energy because they are rich in vitamins, proteins, carbohydrates and many other energetic compounds. Fruits also have remedy for many .....

The weight of the body will become zero during free fall because during free fall the body falls with acceleration equal to accleration due to gravity neglecting air resistance. Hence, the reaction force becomes zero i.e. the force that we .....

Tourism and fishing are other important sources of income of the people living in this region. There are big cities with modern facilities. The countries like Britain, Norway, Canada, Australia, etc. are well developed. Thus, the countries .....

सहकारीमा नियमविपरीत लगानी गर्ने, सञ्चालकहरूले मनपरी पेस्की लिने तथा असुरक्षित रूपमा लगानी .....

World Wildlife is an asset of all humankind. In many ways, their well being is linked to our survival. However, due to various reasons, their number is rapidly and continuously declining. Some of the measures that may be implemented for their .....

यसैलाई आधार बनाई निबन्ध लेख्नुहोस् है .....

People tend to eat too much and forget their regular exercise during the week-long festival. People fall sick due to consumption of tobacco, alcohol and unhealthy diet. Lack of mental relaxation, consumption of alcohol and tobacco, lack of balance .....

Some of the ways to mitigate such problems are: by limiting the use of firecrackers by disposing of the plastic wastes properly feeding the livestock in cage instead of taking them to forest limiting the use chemical that may be harmful both to .....

The taiga is a forest of the cold, subarctic region. The subarctic is an area of the Northern Hemisphere that lies just south of the Arctic Circle. The taiga lies between the tundra to the north and temperate forests to the south. Taigas are .....

For the first sphere, Radius ( r1 ) = x Volume ( V1 ) = ( 4  ∕  3 )π(r1)3                         = ( .....

Acidity is a condition that develops from having hydrochloric acid in your stomach. All of us have acid in our stomach. Certain food items and illnesses can cause excessive acid reflux because of gas being generated in your stomach, and the .....

Here, Weight (F) = 200N   height (h) = 20m time taken (t) = 15 sec  Work done (W) = F ⨯ d                        .....

We know, Kinetic energy (KE) = 1/2 ⨯ mv2 Where, 'm'  is mass of the body and 'v' is the velocity with which body is .....

The intestine is a winding muscular tube extending from the stomach to the anus. Its main purpose is to digest food. But it also produces various substances that carry messages to other parts of the body, and plays an important role in fighting .....

Here, the reaction is given by:     Sodium thiosulphate + Hydrochloride acid → Sodium cloride +  Water + Sulphur dioxide + Sulphur or,Na2S2O3(aq) + 2HCl(aq) = 2NaCl(aq) + .....

Here,  Total expenditure(in 1000) = 4 + 8 + 12 + 20 + 18 = 62. Now,      62 = 360o .....

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Full form of CWIN is Child Workers in Nepal Concerned .....