HPSC Prelims and Mains Notes, HPSC Test Series
Nuclear energy Everything around us is made up of tiny objects called atoms. Most of the mass of each atom is concentrated in the center (which is called the nucleus), and the rest of the mass is in the cloud of electrons surrounding the nucleus. Protons and neutrons are subatomic particles that comprise the nucleus. … Read more
Electromagnetic Wave Electromagnetic Wave are waves composed of undulating electrical fields and magnetic fields. The different kinds of electromagnetic waves, such as light and radio waves, form the electromagnetic spectrum. All electromagnetic waves have the same speed in a vacuum, a speed expressed by the letter c (the speed of light) and equal to about … Read more
Agriculture Sector of Rajathan Major Agricultural Issues of Rajasthan are:- To achieve self-sufficiency in food production. To increase Agricultural production and income of farmers / farm labours. To promote sustainable use of Natural Resources such as Land and Water. To promote Soil Health Management and Integrated Nutrient Management. Promote Crop … Read more
Ecosystem Eco-System-An ecosystem is defined as a structural and functional unit of biosphere consisting of community of living beings and the physical environment, both interacting and exchanging materials between them. It includes plants, trees, animals, fish, birds, micro-organisms, water, soil, and people. When an ecosystem is healthy (i.e. sustainable) it means that all the elements … Read more
Properties of matter Matter is anything that has mass and takes up space. At a minimum, matter requires at least one subatomic particle, although most matter consists of atoms. The two properties of matter are: • Mass – amount or quantity of matter • Volume – amount of space occupiedphysical properties – inherent characteristics of … Read more
Biodiversity-Defination, types, importance, hotspots, threats and conservation The term biodiversity was coined as a contraction of biological diversity by E.O. Wilson in 1985. Biodiversity may be defined as the variety and variability of living organisms and the ecological complexes in which they exist. In other words, biodiversity is the occurrence of different types of ecosystems, … Read more
Solid State solid state is a compact state of matter. The solids are distinguished from a liquid or gas in terms of their rigidity which makes them occupy definite volume and have a well defined shape. In solid state, the constituent particles are in close contact and have strong forces of attraction between them. Solids … Read more
Definition of digital computer, Elements of computer: Input unit, Output unit, Primary memory, Secondary memory and Processing unit. Computer is an electronic device that is designed to work with Information. term computer is derived from the Latin term‘computare’, this means to calculateor programmable machine. Computer cannot do anything without a Program. It represents the decimal numbers through a string … Read more
Waste Water Management Water, food and energy securities are emerging as increasingly important and vital issues for India and the world. Most of the river basins in India and elsewhere are closing or closed and experiencing moderate to severe water shortages, brought on by the simultaneous effects of agricultural growth, industrialization and urbanization. Current and … Read more
Human health and diseases According to the World Health Organisation (WHO), health is defined as: Health is a state of complete physical, mental, and social well being and not merely absence of disease or infirmity. Good health of an individual is important in order to ensure happiness and our ability to work. There are many … Read more