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The things other than plants and animals, such as buildings, rocks, soil, water etc. are non living things.  They can not grow and produce young ones. They do not need food and oxygen. They can not move and show response. They have no life .....

2. Respiration Respiration is a chemical raction that happens within cells to release energy from food. Both plants and animlas .....

Meter is called a standard unit because it is a SI unit, which is accepted all over the .....

Gun recoil back when a bullet is fired from it due to the principle of conservation of linear momentum. The backward recoil gun momentum balances the forward bullet momentum to maintain zero total momentum. As the mass of the bullet is small its .....

From the definition of acceleration, Acceleration(a) = Final velocity(v) - Initial velocity(u)                                        .....

Ecosystem is beneficial for human beings as a healthy ecosystem provides nutritious food and clean water, medicinal herbs, controls diseases, etc . These services provided by the ecosystem are vital for sustaining well-being, and for future economic .....

Violence against women and girls is a grave violation of human rights. Its impact ranges from immediate to long-term multiple physical, sexual and mental consequences for women and girls, including death. It negatively affects women’s .....

Solution : 2 hour and 5 second = 2 *60 minute + 5 second = 2*60*60 seconds + 5 seconds = 7200 seconds + 5 seconds = 7205 .....

Foreign employment may be defined as an economic activity in which the working-age people migrate to a foreign nation to earn their livelihood. In the context of Nepal, people go to foreign nation due to following reasons: inability to earn their .....

In mathematics, factorization or factoring is the decomposition of an object into a product of other objects, or factors, which when multiplied together give the original. For example, the number 15 factors into primes as 3 × .....

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Amongst the various infrastructure of development, waster is the most important element as we can not imagine life without water. The very survival of life depends upon water. We know that Nepal is one of the richest nations when it comes to water .....

The Panchayati system started with the promulgation of panchayati constitution on 2019 BS. Though the panchayati was considered oppressive in nature it was responsible for many socio-economic reforms in the Nepali society. Some of them .....

Fusion is the process or result of joining two or more things together to form a single .....

Have you ever seen water boiling? Look at the figure above. What you see? You can see vapours in large amount. How it is possible? Simply when the water is heated. Thus, evaporation is the process, in which substance in a liquid state .....

Mixture is an impure substance formed by the physical combination of two or more substances in any proportion by their weights. For examples : Sand and water, salt and water, milk, blood, sea water, .....

Compound is a substance made up of two or more atoms of differnet elements in a fixed proportion by weights. For example. Water, Carbondioxide, Sodium Chloride, Hydrochloric acid, Calcium oxide, .....

An element is a pure substance which is made of only one kind of atoms. For example : iron, coper, zinc, silver, gold, oxygen, .....

Some of the properties of matter are : Matter has mass Matter has weight Matter occupy space Matter exists in solid, liquid or gas .....

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Anything which has mass and volume is called matter. Matter can exist in three physical states : solid, liquid and .....

‘प्रत्यागमन’ कथामा गरिब र धनीबिचको वर्गीय सन्तुलन नमिल्दा रामुको घर भाँडिएको छ । रामु, .....

Seven political parties and CPN Maoist reached a 12 point agreement in Delhi to conduct a peaceful revolution against the King’s decisions. Accordingly, the second civil revolution began from 24th Chaitra 2062 B.S. This Second People's .....

An enzyme is a substance that acts as a catalyst in living organisms, regulating the rate at which chemical reactions proceed without itself being altered in the process. The biological processes that occur within all living .....

Carbonic anhydrases are enzymes that catalyze the hydration of carbon dioxide and the dehydration of bicarbonate:

If a body can cover equal distances in equal intervals of time then the body is said to move with uniform motion. For examples: motion of the earth around the sun, a car moving on a straight road without any change in its velocity, motion of .....

There are many examples for a body is at rest and in motion at the same time.

Average velocity is the displacement of a body divided by time which takes to cover that distance. While relative velocity is the velocity of one body with respect to other body. Average velocity depends upon the distance covered by single .....

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A society is a group of people living together and has common goals. In other words, a society is a group of people living in an organized way. They have similar kinds of needs and often utilise same kind of resources to fulfill their .....

SI units of all physical quantities were adopted from the year .....

If the current changes direction after equal intervals of time, it is called alternating current AC. A generator or dynamo produces alternating .....

There are three kinds of resources human, natural and economic resources. The development of nation and a community depends upon effective coordination and the use of the above mention resources. Natural resources are those that are used by the .....

Multiples / submultiples of time

1 day - 24 hours (h)

1 hour (h) - 60 minute (min)

1 minute (min) - 60 second (s)

1 second (s) - 1000 millisecond .....

The unit of mass is measured in Pound in FPS .....

Let our point be (x,y)  Distance of any point from x-axis = magnitude of its y coordinate From the question we have,  Distance of any point from x-axis =5 Which implies that ∣y∣=5 Now squaring each side we get or,y2  =25 which can .....

Nepal has a vast treasure of traditional architectures which somehow signifies the nature of Nepali people. You may have visited different places of cultural significance where you might have seen different types of architectures. You may have .....

Solution : Profit Percent = ( Profit amount / Cost Price ) x 100% where, Profit amount = Selling Price - Cost .....

Solution : m = ax n = ay and, a2 = (mynx)z Now,  a2 = (mynx)z a2 = [(ax)y (ay)x]z a2 = [axyaxy]z a2 = (a2xy)z a2 = a2xyz equating the powers of same base, we get, 2 = 2xyz so, xyz = .....

Those quantities which cannot be measured are called non-physical quantities. For examples : love, anger, affection, kindness, .....

Indeed it is important to think enough before we speak. Human history has shown that many wars and disastrous events have occurred when people with speak without thinking. If we don't think before we speak we may hurt other people's .....

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Population management may be defined as managing the size of population of the given area as per the available natural resources such that the environment of the place does not get destroyed during development efforts. In another word, it focuses .....

Manpower ( Human resource) maybe defined as one of the most significant resource that utilise natural and financial resources for economic development. With the lack of Human resources, the nation can not develop as it lacks resource that properly .....

We can find the following differences between agrarian society and industrial society: Agrarian Society Industrial society An agrarian society is a society whose economy and wealth is primarily based upon .....

We know that Nepal is second only to Brazil in terms of water resources. Nepal has total potential of 83,000 MW of hydropower production. However, only 43,000 Mw is economically feasible. We know that most of the modern machines run on .....

Nepal is the second largest country in the world in water resource. There are around 6,000 rivers in Nepal. Similarly, there are many lakes, ponds, etc. in Nepal.

A number system is defined by the base it uses, the base being the number of different symbols required by the system to represent any of the infinite series of numbers. Number system are basically of two types : non-positional and positional .....

A disease is a particular abnormal condition that negatively affects the structure or function  of all or part of an organism, and that is not due to any immediate external injury. Diseases are often known to be medical .....