Refraction of light is change in direction of light while travelling from one medium to another. For example: pencil if placed half immersed in water appears to be bent. Not only pencil but anything kept half immersed in water appears to be bent. Moreover, extent of change in direction of light changes from medium to […]
Author Archives: LearnFatafat
Solution
Solution Solution is homogeneous mixture of two or more substances. It is composed two components which are solute and solvent. Solute is present in less quantity whereas, solvent is present is large quantity in solution. For example, sugar solution[liquid solution], mixture of metals i.e. alloys [solid solution], mixture of air [i.e. gaseous solution] Amount of […]
Heredity in Humans
Heredity is passing of traits from parents to child. Sometimes child looks similar to parents, it is because child inherits traits like eyes, complexion, color of hairs. Mendel’s contribution in heredity Traits in child are influenced by the DNA of father as well as DNA of mother. Moreover, with each DNA there are two version […]
Depletion of flora and fauna
Flora and fauna are the plant and animal life in certain area. Reason for depletion of flora and fauna Reason for depletion of flora and fauna are industrial economy and consumption of resources. Industrial economy: Due to the increasing demand of forest products like furniture, vegetables, grasses and other minerals from forest resources, there is […]
What is Gravitation?
Presence of gravitation or gravitational force was first brought up by Sir Isaac Newton. Story of falling of apple on Newton’s head is very much familiar. Apple fell on head of newton, on basis of this observation, he carried out experiments. Moreover, the experiments revealed the existence of gravitational force on basis of which universal […]
Embryo Development
Male and female gametes undergo fertilisation to form zygote which is unicellular organism. This cell or zygote develops further to form an embryo which eventually forms a baby. Development of Embryo in human beings In human beings, after the formation of zygote, the zygote undergoes repetitive cell division thereby increasing number of cells. When number […]
Land Resources in India
Resources which are available on land are called land resources. Land resources includes natural vegetation, wild life, human life, economic activities, transport and communication. Moreover, most of our basic needs like food clothing and shelter comes from land. Therefore, careful use of land is necessary. Land Resources in India In India, Land resources includes 43% […]
What is Animal Husbandry?
Animal husbandry or animal farming is branch of agriculture. Particularly, animal husbandry deals with management of animals i.e. animals are raised for acquiring essential products like milk, meat and eggs. Therefore, animal husbandry includes farming of animals like cow, goat, buffalo, fish, sheep, poultry, etc. More specifically, animal husbandry is divided into cattle farming, poultry […]
Non Conventional Source of Energy
Introduction to Non conventional source of energy Energy generated with help of sun, wind, animal waste, etc are called non conventional sources of energy. Solar energy, wind energy, biomass energy, tidal energy, geothermal energy are some examples of non conventional sources of energy. Major question is why do we need non conventional sources though we […]
Rate of motion: Speed, Velocity and Acceleration
Rate of motion helps to understand how body changes its speed with respect to time. Speed, velocity and acceleration describes rate of motion. Speed Rate of motion can be defined in the form of speed. Speed is distance travelled per unit time. SI unit of speed is m/s. In other units this rate of motion […]