Distinguish between the following.
1. Metallic and non metallic Minerals
2. Thermal electricity and hydro electricity.
3. Renewable and non renewable sources of energy
4. Conventional and non conventional resources.
Answers
Explanation:
Metallic Mineral Non-Metallic Mineral
These are ductile. These are not ductile or brittle.
By melting process, metals can be obtained from metallic minerals. These minerals do not yield any new product on melting.
These are malleable. These are non-malleable.
2)Thermal energy is produced by burning coal, petroleum and Natural gas. Hydroelectricity is produced by fast flowing water with the help of turbines. It uses non-renewable resources to generate electricity. It uses renewable resources to generate electricity.
Thermal Energy: Hydroelectricity
It is expensive in the long run: It is cheaper in the long run
It causes pollution: It doesn’t cause pollution
High maintenance and repair cost: Less maintenance and repair cost
3)Types of energy
Non-renewable energy includes coal, gas and oil. Most cars, trains and planes use non-renewable energy. They are made by burning fossil fuels to create energy. Renewable energy includes solar, hydro and wind energy.
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Answer:
1 = Examples of metallic minerals – iron ore, bauxite, hematite etc. Non-Metallic Minerals – Those minerals which do not contain metals are called non-metallic minerals. Examples of non-metallic minerals – diamond, mica, salt, potash etc.
Metallic Mineral: Non-Metallic Mineral
These are malleable: These are non-malleable
These are ductile: These are not ductile or brittle
2 =Thermal energy is produced by burning coal, petroleum and Natural gas. Hydroelectricity is produced by fast flowing water with the help of turbines. It uses non-renewable resources to generate electricity. It uses renewable resources to generate electricity.
Thermal Energy: Hydroelectricity
High maintenance and repair cost: Less maintenance and repair cost
It causes pollution: It doesn’t cause pollution
3 = Resources are characterized as renewable or nonrenewable; a renewable resource can replenish itself at the rate it is used, while a nonrenewable resource has a limited supply. Renewable resources include timber, wind, and solar while nonrenewable resources include coal and natural gas.
4 = Answer:
Conventional sources of energy Non-conventional sources of energy
Fossil fuel, CNG, coal, oil, natural gas are the examples of the conventional sources of energy. Solar Energy, Wind Energy, Bio Energy, Hydro Energy, Tidal Energy, Ocean Energy are the examples of non-conventional energy resources.