When early humans began farming, they were able to produce enough food that they no longer had to migrate to their food source. This meant they could build permanent structures, and develop villages, towns, and eventually even cities.
For example - squares, rectangles, rhombuses, trapeziums and parallelograms are quadrilaterals. A quadrilateral has four sides and four angles. The symbol of a quadrilateral is □. Each shape shown below is a quadrilateral.
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It may be noted that although lithium has most negative E value (Table 10.1), its reaction with water is less vigorous than that of sodium which has the least negative E value among the alkali metals. This behaviour of lithium is attributed to its small size and very high hydration energy. Other metals of the group react explosively with water. They also react with proton donors such as alcohol, gaseous ammonia and alkynes.what is E- value? How is Li most negative?
But its reaction with water is less vigorous than that of sodium which has the least negative EΘ value among the alkali metals. This behaviour of lithium is attributed to its small size and very high hydration energy.
Companies repay the borrowings at a fixed rate of interest to the debenture holders. Shareholders get a return by dividend payment. In case of debentures, the holders get interest regardless of the profit of the company. Shareholders' payments are made from the profit earned by the concerned company.
The numerator and denominator of a rational number are in the ratio 3:4. If the denominator is increased by 3, the ratio becomes 3:5. Find the rational number.