Examples of chemical revolution in the following topics:
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- Probably the first period in history in which an economic progress was observable during one generation was the British Agricultural Revolution in the 18th century.
- High productivity growth began during the late 19th century in what is sometimes called the Second Industrial Revolution.
- Since the beginning of the Industrial Revolution, some of the major contributors to productivity have been as follows:
- Energy efficiency in the conversion of energy to process heat or chemical energy in the manufacture of materials;
- Scientific agriculture: fertilizers and the green revolution, and livestock and poultry management;
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- There are two types of change in matter: physical change and chemical change.
- As the names suggest, a physical change affects a substance's physical properties, and a chemical change affects its chemical properties.
- Many physical changes are reversible (such as heating and cooling), whereas chemical changes are often irreversible or only reversible with an additional chemical change.
- Chemical changes are also known as chemical reactions.
- Rotting, burning, cooking, and rusting are all further types of chemical changes because they produce substances that are entirely new chemical compounds.
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