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Explanation: The anomalous expansion of water refers to the fact that water, unlike most substances, expands when it freezes. The density of water increases as temperature decreases, but reaches a maximum at 4 degrees C then begins to expand. The significance of this is that ice is less dense than wRead more
Lamarckism is the first theory of evolution, which was proposed by Jean Baptiste de Lamarck (1744-1829), a French biologist. Although the outline of the theory was brought to notice in 1801, his famous book “Philosophic Zoologique” was published in 1809, in which he discussed his theory in detail. TRead more
Causes of Deforestation on Nepal: Deforestation is one of the major environmental issues in Nepal. Over-harvesting of fuelwood and fodder, forest ﬁre, lopping and grazing, slash and burn cultivation, and timber extraction are generally considered to be the major factors responsible for deforestationRead more
With an inclined force, Push will be more difficult to achieve. REASON : At a certain angle theta to the horizontal, the applied force splits into two components; Vertical and Horizontal. The horizontal component is responsible for horizontal motion, in this case the Horizontal Push. The vertical coRead more
Based on the types of orbitals involved in mixing, the hybridization can be classified as sp3, sp2, sp, sp3d, sp3d2, sp3d3. Let us now discuss the various types of hybridization, along with their examples. sp Hybridization sp hybridization is observed when one s and one p orbital in the same main shRead more
As the wealth and riches of a country cannot grow without the proper utilization of its resources. If a country could utilize it resources, both natural and human then the coutry economy will surely increase. As economist often says, human resource is the biggest wealth of a country. We have seen maRead more
Genetic Diversity: 1. It is related to number of genes and their alleles found in organisms. 2. It is trait of the species. 3. It influences adaptability and distribution of a species in diverse habitats. Species Diversity: 1. It is related to number and distribution of species found in an area. 2.Read more
5 Years ago a man’s age was 5 times the age of his daughter’s Let the mans age be 5x and daughter age be x At present the mans age is (5x+5) and daughters age is (x+5). According to question, After 3 years twice his age will be equal to 6 times his daughter‘s age. So, 2(5x+5)+3 = 6(x+5)+3 10x+10+3 =Read more