Question

(v) How was the scene in the school on the morning of the last lesson different from that on other

days?​

Answer 1

Explanation:

Following chemical reactions takes place in the combustion of coal with the release of heat: C + O2 = CO2 + 8084 Kcal/ Kg of carbon (33940 KJ/Kg) S + O2 = SO2 + 2224 Kcal/Kg of sulfur (9141 KJ/Kg) 2 H2 + O2 = 2 H2O + 28922 Kcal/Kg of hydrogen (142670 KJ/Kg)

Answer 2

Explanation:

Education is the backbone of a country. It is an integral tool that aids the development of human civilization. Education equips the nation with the workforce, uplifts awareness among the general public, and promotes national unity. A life without education