Students and Teachers Forum
Rivers are very useful for the development of our country. We can irrigate our farms and run many hydroelectricity projects by using river water. If we utilize the complete water power to produce electricity, our country can .....
You may have already learned about fertilization in plants. Fertilization means the fusion of male reproductive cells (i.e. pollen) and female reproductive cells (i.e. ovules) in the ovary. After fertilization, the fertilized ovary forms the .....
The area of circle with radius 'r' is: Area(A) .....
As we know, x o = 1. So, index of x must be 0 to be value .....
We know, sum of angles of a triangle is 180o. So, <L + < S + <C = 180o. or, 60o + x + 50o = 180o. or, x + 110o = 180o. or, x = 180o - 110o Hence, x = .....
Here, AF = 10cm = FG BG = 12cm BF = BG - FG = 12 - 10 = 2cm So, AB = AF - BF = 10cm - 2cm = .....
Some of the practical uses of ultrasonic sound are as follows: i. It is used by doctors to identify the disease of inner parts and location of tumors. ii. It is used to kill bacteria for sterilization purpose. iii. It is used to find the depth of .....
So, the relation between speed of sound and medium is: - The speed of sound is faster in solid medium than in liquid medium, and faster in liquid medium than in gaseous .....
Here, P(1, 1) , Q(2, 3) and R(5, - 1) are three points. PQ = √[(2 - 1)2 + (3 - 1)2] = √(1 + 4) = √5 units Hence, PQ = √5 units. PR = √[(5 - 1)2 + (-1 - .....
Water stored in a dam also possesses energy due to its position. This energy possessed by a body due to its position is called potential energy. It can be calculated by using the formula, PE = .....
Given word equation: Aluminium + Hydrochloric acid ⟶ Aluminium chloride + Hydrogen Balanced chemical equation: 2Al + 6HCl ⟶ 2AlCl3 + .....
You know that mercury is toxic to human health. Mercury is in the environment from natural sources such as rocks, soil, volcano, etc. and you know that fish is good for us and it is a healthy diet. Those fishes and shellfish .....
Permanent hardness occurs due to the presence of chlorides, nitrates and sulphates salts of magnesium and calcium in the .....
You know that plants also need nutrients like we need. There many nutrients required for the proper growth of the plants. Phosphorous is one of the major plant nutrients in the soil. Hence, some of the importance of phosphorous are as .....
You know that different types of living organisms live on earth. They live and adjust in different environment. This adjustment of living organisms to become better suited to their environment is called .....
Permanent tissues, which consist of cells that work together are complex permanent tissues. Xylem and phloem are complex permanent tissues. Xylem: i. It consists of four types of cells. They are tracheids, vessels, wood fibres and wood .....
Internal structures of human eye consists of different parts. They are shown in the picture .....
Here, a.b = b.c or, 2( k -1) + k .1 = ( k - 1) . 2 + 1. ( k +2 ) or, 2 k - 2 + k = 2k - 2 + k + 2 or, 3k - 4 = 3k We can't get answer. Please check your .....
Some of the differences are:
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प्रश्न नं. १.देखि १०. सम्मको उत्तर १. भविष्यत् कालको सामान्य पक्षमा आफूले गर्ने कामको .....
प्रश्न नं. १. र २.को उत्तरः १.(क) खेलाडीहरुद्वारा भलिबल खेलिन्छ । (ख) आमा सरुलाई चिठी .....
श्रुतिसमभिन्नार्थक शब्दलाई फरक फरक वाक्यमा प्रयोगः १. भाँडाः (खाना खाने साधन विशेष) खाना .....
The differences between Terai and the himalayan region .....
During winter a low pressure develops over the Indian Ocean while a high pressure lies over the Tibetan plateau. Thus the cold air flows down the Himalaya and south to the ocean. These weather fronts between warm air and cold air generally produce .....
Most of the power plants in Nepal are run-of-river type with energy available in excess of the in-country demand during the monsoon season only. There is the shortage of power during winter and spill during wet season. The .....
Here, CP of book = Rs.100 SP = Rs.90 Loss = CP - SP = 100 - 90 = Rs.10 We know, loss % = Loss/ CP x 100% = Rs.10 / Rs.100 x .....
Every 1° is equal to 4 minutes. If the place is to the west of Greenwich median than subtract the calculated time from the actual time of GMT and if it is on the east than add. So Panama city is 80x4=320 min= 5 hours+20 min behind of .....
Lincoln requested his son's teacher to teach him that all men are not good. Amongst the good their also the bad and .....
Lincoln advised his son not to follow the crowd because he thought that a crowd does not have filtered truth which does not lead to the right .....
Lincoln wanted to see his son have sublime faith, truth and courage in himself. Lincoln wanted his son to be brave who does not sell his heart and .....
By saying the proverb "10 cents earned is of far more value than a dollar found" he means that the things one has earned by self-are far better than the more valuable things .....
Abraham Lincoln wrote the letter to request his son's headmaster for his better .....
Here, Height of cone = √ [ l2 - r2 ] = √ [ l32 - 52 ] = 12cm Volume of object = volume of hemi-sphere + volume of cone .....
Here, The present age of father and son is 50 and 15 years respectively. Let before 'x' years, the product of their age was 450. We know, Age of father 'x' years back = (50 - x) And, Age of son 'x' years back = .....
Disasters like landfall, erosion, flooding, glacier lake outburst floods, mudslide etc. that are primarily caused by water may be termed as the water .....