Terai region covers about 17% of the total area of Nepal. The Terai stretches from the international border with India in the Far-Western region to the Eastern region. It is located at an altitude of 67-300m (220-980 ft.). The Terai region .....

Solurion: Here,  (1 + sin A)/cos A = cos A/(1 - sinA) or,  (1 + sin A)(1 - sinA) = cos A.cos A or, ( 12 - sin2A) = cos2A                       [ using formula, ( a + b) ( .....

Solution: Here,  a +  45o =  1800           [ Linear pair.] or, a  =  180 o - 45o = 135o Again,  45o + 85o = b or, b = 130o Hence,  a  =  .....

Solution, Here,   a  = b            [ Alternate angles are equal.] Again,  b  + 2a  = 84o        [ sum of two angles of a triangle is equal to non - adjecent .....

Solution: We know, sum of angles of triangle is 180o. So,  62o + 50o + a  =  180o. or, a  + 112o =  180o. or, a  =  180o. - 112o. a = 68o. Now, a  =  c = 68o.       [ .....

The full form of COMPUTER, Common Operating Machine Particularly Used for Technology and Educational .....

There are 8 country in SAARC. Nepal - Kathmandu Maldives - Malé Pakistan - Islamabad Srilanka - Kotte Afganistan - Kabul Bangladesh - Dhaka Bhutan - Thimphu India - New .....

.....

For a group of fractionsto be like, they have to have the same number in the denominator. For fractions to be unlike, they have to have different numbers in the denominator. In other words, they have to have different .....

A fraction simply tells us how many parts of a whole we have. You can recognize a fraction by the slash that is written between the two numbers. We have a top number, the numerator, and a bottom number, the .....

Solution: Here,  1/ 25  = 1 / 52                                    [ As, 25 = 5 . 5= 52.] = 5-2              .....

.....

He said that next day is .....

Answer: The name of devices are: a. Kinetic energy to electrical energy = Hydropower b. Electrical to Kinetic energy = Electric fan c. Electrical to sound energy= Loudspeakers d. Electrical to Heat energy = .....

For three pulley system, V.R. = no. of pulley = 3 You may know that, M.A = load/effort          = 200/100          = 2 Also, efficiency = (M.A/V.R) x 100 %       .....

Alternatively, when water meets up with an acid (like HCl), water acts as a base by accepting a proton from the acid. HCl + H2O(ℓ) → H3O+(aq) + Cl−(aq) (acid)    .....

Like Animals, Plants breathe too. But they do it through tiny openings in leaves called stomata . Stomata opens and closes to allow the intake of carbon dioxide and the release of .....

Tritium a radioactive isotope of hydrogen with a mass approximately three times that of the usual .....

Sterilization (or sterilisation) refers to any process that eliminates, removes, kills, or deactivates all forms of life and other biological agents  (such as fungi, bacteria, viruses, spore forms, prions, unicellular .....

A cyanophage is a virus that infects cyanobacteria. The name is constructed from the term phage, for a virus that targets bacteria, and cyanobacteria for the specific type of bacteria this virus uses for .....

The main components in naturally occurring tears are: 1. Salts (Sodium Chloride - NaCl and Potassium Chloride - KCl) 2. Proteins 3. Water (H20) 4. Antibodies (IgA) Two main components are water and .....

Tropical disturbance is a very weak, or incipient, tropical cyclone. It is a rapidly rotating strom system characterized by low pressure center. It is closed low-level atmospheric circulation, strong winds  and a spiral .....

The two allotropes of carbon are Diamond .....

Storm surge is the abnormal rise in seawater level during a storm, measured as the height of the water above the normal predicted astronomical tide. The surge is caused primarily by a storm’s winds pushing water .....

.....

Two factors upon which the loudness of sound depends are as follows: 1. Amplitude of vibration It means sound with more amplitude is .....

Marketing is an act of promoting and selling products or services. It includes market research and advertising. It is the study and management of exchange .....

The product-wise diversification of trade helps to increase the total volume of exports and the total income. Foreign trade should not be limited only to the production and sale of few goods. It should produce and sell new goods according to .....

Vat amount = Vat % of S.P or, 320 = 10 % of 4x/5 or, 320 = 10  ⨯ 4x                100     5 or, 320 = 2x                 25 or, 2x = .....

.....

Solution: Given, Weight of solvent (water) = 20 gm Weight of solute (NaCl) = ? We know that, At 200 C, solubility of NaCl = 35.89 Now, according to the formula, Solubility =   Weight of solute    ⨉ 100     .....

The atoms of other substances (like glass, coal, plastic, rubber etc.)  are tightly bound together but do not have the specific patterns. Their particles are randomly arranged. These substances are called as amorphous .....

The term social faith means the beliefs upon the social norms and values, codes of conducts, and practices. Thus, social faith refers to the love and respect to the norms and values of the society. Definitely, every society has developed some kind .....

You have learned that, 1000 gram = 1 kg. 1 gram = 1/1000 kg .....

Hydrogen is collected by downward displacement of water in lab because if its collected by upward displacement it will come in contact with air in surrounding and will flow away in free .....

Pure zinc is not used in preparation of hydrogen gas. i) Completely pure zinc metal is not used for the preparation of hydrogen because it is slowly attacked by the acid. ii) Concentrated H2SO4  cannot be used for the preparation of .....

भारतको दार्जिलिङअन्तर्गत खरसाङमा भएको हो । .....

Electrical conductivity: Metals contain free moving delocalized electrons. When they get connected to the external sources (emf), electrons start moving. This causes the charge contained by the electrons to move. As a result, electricity flows .....

Crystals are a special kind of solid material where the molecules fit together in a repeating pattern. This pattern causes the material to form all sorts of unique shapes.  The process of crystal forming is called crystallization. Crystals .....

NO, they are created by human for .....

.....

Prithvi Narayan Shah became the king of Gorkha after the death of his father King Narabhupal Shah. Gorkhali in the third attempt was victorious over Nuwakot. In 1801 BS; Gorkhali troops attacked Nuwakot from three sides and .....

Solution: Here, 3x + 1/2 = - 1/2 or, 3x = -1/2 - 1/2 or, 3x  = -2/2 or, 3x = - 1 or, x = -1/3. Hence, x  = - 1 / .....

The energy that takes in battery when used in torch light is:- chemical energy ----> electrical energy ----> light .....

Sun is the main source of .....

Solution: Here, speed of the bus (s) = 20 m/s Distance (d) = 72 km                     = 72 ⨉ 1000 m                     = 72000 m Time .....

.....