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Yogita Ingle 7 years, 7 months ago
The various properties of metals can be improved by mixing other metals in it. The homogeneous mixture of two or more metals is called alloy. For example brass is an alloy of copper and zinc.
- Alloys are stronger than the metal which they are made.
- Alloys are more resistant to corrosion.
- Alloys have lower melting point .
- Alloys have lower electrical conductivity.
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Yogita Ingle 7 years, 7 months ago
Squamous Tissue: It is made up of thin, irregular shaped cells which fit to form a compact tissue. It forms the lining of blood vessels, mouth, alveoli, nose, oesophagus, skin. It protects the parts of body from mechanical injury, entry of germs, chemicals, drying.
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Šhüßhêńđŕã Küšhwăhä 7 years, 7 months ago
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Yogita Ingle 7 years, 7 months ago
Hybridization is the crossing of dissimilar individuals to produce best of both organisms. One advantage of hybridization is that it can combine disease resistance of one organism with the production capacity of another. Crop yields increase dramatically when hybridization is used to exceed one or more of the parents in size and reproductive potential.
Posted by Hari Om Satyam 7 years, 7 months ago
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Sonali Aggarwal 7 years, 7 months ago
Coal and petroleum are fossil fuels and a nonrenewable source of energy.They are said to be nonrenewable as they take thousands of years in renewing themselves. Since we have been using them for so many years they are near to exhaustion. So it is high time for us to use them judiciously and also begin using nonconventional or renewable .sources of energy like tidal energy, solar energy
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Livinus Tudu 7 years, 7 months ago
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Yogita Ingle 7 years, 7 months ago
Plants require frequent watering in summers as water from soil and plant surface evaporates. Hence, water is essential for the survival of plants.
i) Seed requires water to carry out the process of germination. In the absence of water, germination does not take place.
ii) Also, water is required by plants to transport nutrients to other parts of plants in a dissolved state.
iii) Water also protects crops from frost and hot currents.
Crop fields need to be watered regularly in order to maintain healthy crops.
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Syed A. Nafeesa 7 years, 7 months ago
1Thank You