Answer:
Solution : Combustion of Liquefied Petroleum Gas (LPG) is a chemical change. Because it is an irreversible reaction and new products, carbon dioxide and water vapour are formed and lot of heat is also produced during the reaction.
Energy from the sun heat and chemicals
<span>undergo a dramatic decline in size, possibly to a stable level at or below 1,800 individuals.</span>
Answer:
<em>change</em><em> </em><em>in</em><em> </em><em>genetic</em><em> </em><em>structure</em><em> </em><em>of</em><em> </em><em>a</em><em> </em><em>popu</em><em>lation</em><em> </em><em>over</em><em> </em><em>time</em>
