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.
Â» Use Cases. Before understanding use cases, it's useful to know what Terraform is. This page lists some concrete use cases for Terraform, but the possible use cases are much broader than what we cover. Due to its extensible nature, providers and provisioners can be added to further extend Terraform's ability to manipulate resources. Heroku is a popular PaaS for hosting web apps.