Notes and Study material for Exams
Preparation of nitrogen Nitrogen is found in both free and combined states. It occupies 78.07% by volume. Nitrogen can be prepared: By heating copper in air: Firstly, air is passed through lime water and then concentrated sulphuric acid to make the air free from carbon dioxide and moistures respectively. The air contains only nitrogen and … Read more
Non Metals As far as Elements are concerned, a nonmetal is simply an element that does not display the properties of a Metal. It is not defined by what it is, but by what it is not. It doesn’t look metallic, can’t be drawn into a wire or pounded into shape or bent, doesn’t conduct … Read more
Compounds are defined as substances composed of two or more different Elements that are chemically combined. Both salt and water are compounds. Some important chemical compound and their uses are as follows:- NaCl sodium chloride (table salt, used in solutions for contact lens) ZnO zinc oxide (used in some sunscreens and diaper rash ointment) NaF … Read more
An Atmosphere is a layer of gases surrounding a planet or other material body, that is held in place by the gravity of that body. Many of the planets in this Solar System have atmospheres, but none that we know of have an atmosphere quite like ours – one that can support life. The … Read more
The nitrogen cycle is a biogeochemical cycle that involves the transformation of nitrogen among various chemical forms. The main reservoir of nitrogen is in the AtmosphereAtmosphere, where it exists as molecular nitrogen (N2). Nitrogen is also found in SoilSoil and water, and in the bodies of plants and animals. Here are the subtopics of the … Read more
Biogeochemical Cycles: Here is a list of subtopics without any description for Biogeochemical Cycles: Carbon cycle Nitrogen cycle Phosphorus cycle Sulfur cycle Water cycle Oxygen cycle Rock Cycle Sedimentary cycle Hydrologic cycle Carbonate cycle Nitrogen fixation Nitrification Denitrification Ammonification Mineralization Immobilization Leaching Uptake Transpiration EvaporationEvaporation PrecipitationPrecipitation Runoff Infiltration Percolation Groundwater Surface water Oceans AtmosphereAtmosphere Biosphere … Read more
Elements Required in Plant Growth Plants are living organisms that require a variety of elements in order to grow and thrive. These elements are essential for the production of chlorophyll, the molecule that plants use to convert sunlight into energy. They are also necessary for the formation of proteins, nucleic acids, and other essential molecules. … Read more
Macronutrients – Elements Required In Plant Growth Plants need a variety of nutrients to grow and thrive. These nutrients are divided into two categories: macronutrients and micronutrients. Macronutrients are required in large amounts by plants, while micronutrients are required in smaller amounts. Macronutrients The six macronutrients that plants need are nitrogen, phosphorus, potassium, calcium, magnesium, … Read more
What are Nitrogen Fixers? Nitrogen fixers are organisms that convert atmospheric nitrogen into ammonia, a form of nitrogen that plants can use. This process is called nitrogen fixation. Nitrogen is an essential element for plant growth. It is a component of proteins, nucleic acids, and chlorophyll. Without nitrogen, plants cannot grow or reproduce. Nitrogen fixers … Read more