Question

WRITE WORLD WAR II.................​

Answer 1

Explanation:

Most British people tend to use "the Second World War" when writing formally, and Americans "World War II." If it's a more informal kind of writing, "WWII" or "WW2" will be enough.

Answer 2

Answer:

Invented by Dean Kamen and running on a Stirling engine or solar panel, the Slingshot has been used in tests in Africa to provide clean water to rural schools.