A leader by its meaning is one who goes first and leads by example, so that others are motivated to follow him. This is a basic requirement. To be a leader, a person must have a deep-rooted commitment to the goal that he will strive to achieve it even if nobody follows him! Joshua was such a man.
An artist's conception shows a terraformed Mars in four stages of development. Terraforming (literally, Earth-shaping) of a planet, moon, or other body is the hypothetical process of deliberately modifying its atmosphere, temperature, surface topography or ecology to be similar to the environment of Earth to make it habitable by Earth-like life.
A landform is any natural formation of rock and dirt, found on Earth. A landform can be as large as a mountain range, or as small as a hill. It can be as large as a continent, or as small as a pond. Geologists study how landforms are created, and how they interact with one another. .menuItem { font-family: verdana; font-size: 10pt; color: #990000; text-decoration: none; }.