Living things breathe to live.

He has not explained the Origin of Variations which is an important factor in the evolutionary process and has accepted it as natural occurrence. Sometimes survival of the fittest would not be possible because variations selected by nature may be .....

We know, efficiency = output work/ input work x100% So, 85% efficiency means, only 85% of input work is used to do the work and other part is wastage due to friction ,heat and other .....

You might have learnt about Newton's third law. For every action there is a equal and opposite reaction. Therefore, when a person pushes the water backwards the water pushes him forward, i.e when the person applies force on the water in .....

Please clarify your second .....

AB be the length of  rectangular field.

EA = 40 m

From ∆ADE,  find AD

From .....

कुनै कार्य वा घटनाको बुझाएर वाक्य पुरा गर्ने पदलाई क्रियापद भनिन्छ । बुझ्नुभयो त ? अब .....

Is there SSA .....

When the paratrooper falls with a parachute, the surface area of the parachute is more.  Due to the great surface area, the resistance of air acting on it will be more.  The air resistace increases with increase in the velocity of the .....

6.g) Here to find the area of shaded region, we have to find the area of 4 semi circle and area of rectangle. Radius of semi circle=r=20/2=10cm Here, area of 4 semi circle= 4x1/2 π r2=2 π r2=2x 22/7 x 10cm x 10cm       .....

 विषादी लगायत हानिकारक तत्त्व प्रयोग  नगरी गरिने खेती जैविक हो ।  यसमा मानिस तथा जीवका .....

Solution; Here to find the volume of given prism we need to find area of its base. So, anea of base =area of right angled triangle P'Q'R'=1/2  Perpendicular x base A=1/2 x 12cm x 5cm=30cm2 Height=h= 10cm Finally volvme of .....

You can write the given data as x:  0-10       10-20    20-30         30-40       40-50 f:  7                10  .....

If woman do not support their husband it is sure that the family has to bear many challenges. Their relation do not move ahead. The misunderstanding will occur that creats the failure in their family life. Don't you think so? Could you plese .....

For example, When increasing the volume of music played through a music system, you are increasing the amplitude. The amplifier is giving the sound waves more energy, which causes the music to sound .....

 विषादी लगायत हानिकारक तत्त्व प्रयोग नगरी  गरिने खेती जैविक हो ।  यसमा मानिस तथा जीवका .....

From SP An MP we can find discount  so, Discount amount= MP-SP= 300-200=Rs.100 We knoew,  discount %= Discount amount /MP  x 100%                             .....

Hirakazi and his neighbor made linge ping using bamboo and .....

Potassium nitrate is a chemical compund with the chemical formula KNO3. It is an ionic salt of potassium ions K+ and nitrate ions NO3−, and is therefore an alkali metal .....

i) The periscope  is used to determine the distance of the torpedo attack ,     it determines the correct time to fire the torpedo with high speed .  

ii) The  periscope is used to monitor the .....

 वाक्यमा रहेका कृयापदसँग वाक्यका अन्य पदले राख्ने सोझो सम्बन्धलाई कारक भनिन्छ ।  कारक .....

तपाईंलेको प्रश्न बुझिएन । कृपया बुझिने गरी प्रश्न सोध्नु होला .....

To find surface area we need slant height l; of cone. We know,   l2=r2+h2=422+562 From this find l.  height of cone =h=56cm Height if cylinder= H= 210cm-56cm-56cm=................cm Radius=r=42cm Now TSA of solid = CSA of 2 cone .....

Here room is square, so l=b Now area of 4 walls= total cost/rate or, 2(l+l) h=2400/20 or, l h=30 Again   volume = l x l xh or, 180= l x lh or, 180= l x 30 l=6m Now. lh=30 so, .....

To convert a fraction into percentage,  you can just multiply the fraction to 100%. i.e. fraction 20/100 in the form of percent can be written as 20/100 x 100% which is equal to 20%. Thus, fraction 20/100 is terms of percent = .....

As harder acid holds onto its electron density more than a softer acid. The hardness of a lewis acid increases with increasing positive charge, as the electron density .....

Autogamy is also known as self fertilization. In this process nuclear reorganization occurs in a single individual without the cooperation of another individual. During the process, the meganucleus break and gets absorbed by the cytoplasm. The two .....

This Problem we can solve by using indices rule. 2x-3. 3x-4=3-1 or, 2x-3. 3x-4/3-1=1 0r,2x-3. 3x-4+1=1 or,2x-3. 3x-3=1 or,(2.3)x-3. =1 or, 6x-3=60 or, x-3=0 Can you complete .....

Square Roots

A square root goes the other way:

3 squared is 9, so a square root of 9 is 3

A square root of a number is ...

 Pure Surd:

A surd in which the whole of the rational number is under the radical sign and makes the radicand, is called pure surd.

In other words a surd having no rational factor except unity is called a pure surd or .....

Here to find volume of given solid,  We have to find the volume of lower prsism and volume of upper triangular prism So, VOlume = Volume of cube + volume of upper prism =5cm x 6cm x 6cm +1/3 x 6cm x 6cm x (100-5)cm =5cm x 6cm x 6cm +1/3 x .....

Pressure is defined as force/area it just so happens that the weight of the fluid above your head applies a force to the fluid around you so you can calculate what the pressure is this way. When you start working with the fluid (via pumps, pistons .....

What do you see in the given image? It is a map showing few places of .....

As you know that (A, E, I, O, U) are vowel sound.  Syllable is the sound of vowel that is created when pronouncing the letters (A, E, I, O, U or Y) The letter "Y" is vowel sound if it creates an A, E, I, O, or U sound.  Lets .....

In Nepal, house of representatives is composed of the elected candidates from 245 constituency. They are elected for the best utilization of people's rights, voices and choces. So, to represent the interests of the people is the fore most .....

⁡limx→2  x3-8x2-4 form 00    (take derivative w.r.t. x) ⁡limx→2  3x22x form    (Again take derivative w.r.t. x) ⁡   lim  x→2 3x2 3×22 = .....

.....

The root arises from radicle of seed during germination. The root system is below ground. This system includes roots, tubers .....

You must get n(A ∩ O) = 325 This represents the number of people who liked both apple an .....

The asexual life-cycle in secondary host (eg. man) is completed in four stages- 1. Pre-erythrocytic cycle 2. Exo-erythrocytic cycle 3. Erythrocytic cycle and  4. Post-erythrocytic .....

You know, ammonia is a compound of nitrogen and hydrogen. A molecule of ammonia contains an atom of nitrogen and three atoms of hydrogen. So, its molecular formula is .....

Epithelial Tissue:  Covers body surfaces and lines body cavities. Connective Tissue: Binds and supports body parts. Muscular Tissue: Enables movement of structures within the body and movement of the entire .....

CP of 1 tola Gold = $ 553 CP of 10 tolas = $ 5530 Costom Charge amount = 20% of $ 5530 = $ 1106 CP with costom charge = $ 5530 + $ 1106 = $ 6636 VAT amount = 13% of $ 6606 CP with VAT = CP with Costom charge + VAT .....

Please send .....

 मनका भाव प्रस्तुत गर्ने विधा कविता हो ।  कविता छ्न्द र बिना छन्द पनि लेख्न सकिन्छ   तर .....

 ‘मेरो घर’ कविता प्रभा भट्टराइ द्धारा रचिएको  प्रतीकात्मक कविता हो ।  यहाँ मेरो घर .....

Flowering plants are divided into monocots (or monocotyledons) and dicots(or dicotyledons). As the name suggests, the dicot embryo has two cotyledons. Monocotyledons have one cotyledon in the embryo. Examples of monocots include: maize, rice, .....

When sodium bicarbonate is reacted with sulphuric it yields out carbon dioxide. 2NaHCO3 + H2SO4 →Na2SO4 + 2H2O + 2CO2 . As we know CO2 extinguish the .....

But in cave, the concentration of  carbon dioxide are so high if we go deep inside. A cave atmospheres containing greater than 1% Carbon Dioxide (CO2) is called Foul Air.  Typically there is no smell or visual sign associated with .....

As NaHCO3 is sodium bicarbonate, which is commonly known as baking soda. In normal usage, there are no harmful side .....