How does water reach the top of the waterfall?

It is beacause water from rivers , lakes, seas and other main water recources would flow down a waterfall. Since water cycle takes place all the time,water that has flown down the waterfall would be evaporated and creating water vapour.water vapour rises high in the cold sky , thus water vapour would condense to form clouds.When the cloud gets heavy it realises water and creates rain.rain would land on rivers ,lakes , seas and othe main water recources and the cycle continues.

Why was Elizabeth Choy famous?

Elizabeth Choy was a war heroine that help the british held in Changi prison. She supplied them with medicine and money but soon started to smuggle in radio parts for hidden receivers. She was regarded as a heroine as she help many POWs to survive in the prison, one of the prisoners husband, Sir Shenton Thomas, was especially grateful as Elizabeth sent medicine to his wife when she was sick and escorted her to witness the surrender of the Japanese.