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Royal Thakur 5 years, 6 months ago
Royal Thakur 5 years, 6 months ago
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Royal Thakur 5 years, 6 months ago
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Mansi Gupta 5 years, 6 months ago
Meghna Thapar 5 years, 6 months ago
Resources can be classified in the following ways– (a) On the basis of origin – biotic and abiotic (b) On the basis of exhaustibility – renewable and non-renewable (c) On the basis of ownership – individual, community, national and international (d) On the basis of status of development – potential, developed stock and reserves. Resources have three main characteristics namely 1) Utility, 2) Limited availability, 3) Potential for depletion or consumption. Scarcity is the fundamental economic problem of having humans who have unlimited wants and needs in a world of limited resources.
Yogita Ingle 5 years, 6 months ago
- Scarcity: Resources are scarce in relation to their wants.
- Alternative uses: Resources have alternative uses. For example, land may be used for agricultural activity or for industrial purpose.
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Royal Thakur 5 years, 6 months ago
Royal Thakur 5 years, 6 months ago
Lucifer?? Morningstar?? 5 years, 6 months ago
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Meghna Thapar 5 years, 6 months ago
Ammonification refers to any chemical reaction in which NH2 groups are converted into ammonia or its ionic form, ammonium (NH4+), as an end product. Bacteria and related microorganisms derive metabolically useful energy from the oxidation of organic nitrogen to ammonium. Ammonification is the process by which the organically bound nitrogen of microbial, plant, and animal biomass is recycled after their death. Ammonification is carried out by a diverse array of microorganisms that perform ecological decay services, and its product is ammonia or ammonium ion.
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Garima Dahiya 5 years, 5 months ago
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Garima Dahiya 5 years, 5 months ago
Meghna Thapar 5 years, 6 months ago
Observation consists of receiving knowledge of the outside world through our senses, or recording information using scientific tools and instruments. Any data recorded during an experiment can be called an observation. Observation may take place in the natural or real life setting or in a laboratory. The observer may himself participate actively in the group he is observing or he may be an observer from outside or his presence may be unknown to the people he is observing.
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Royal Thakur 5 years, 6 months ago
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Ankit Singh Thakur 5 years, 6 months ago
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Gaurav Seth 5 years, 6 months ago
Metallurgy
The scientific principles and the physical and chemical processes that are applied to obtain pure metals from their ores are known as metallurgy.
In other words, the process used for the extraction of metals in their pure form from their ores is referred to as metallurgy.
The extraction of a metal from its ore depends on:
1. The type of ore being used.
2. The nature of the impurities present in the ore.
3. The degree of the reactivity of the metal that is to be extracted.
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Garima Dahiya 5 years, 6 months ago
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Yogita Ingle 5 years, 6 months ago
The intermolecular forces of attraction that are present in solids are very strong. The constituent particles of solids have fixed positions i.e., they are rigid. Hence, solids have a definite volume
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Royal Thakur 5 years, 6 months ago
Royal Thakur 5 years, 6 months ago
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Royal Thakur 5 years, 6 months ago
Yogita Ingle 5 years, 6 months ago
The first practical laser was built by Theodore H. Maiman at Hughes Research Laboratories in 1960. At the time, lasers were an example of cutting edge technology.

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