The cavemen were the first people to live on Earth. They were hunter-gatherers, and they depended on their instincts to survive.
- The cavemen used to live in caves.
- The cavemen were the first humans to live in a cold environment.
The cavemen were the first people to live on Earth. They were hunter-gatherers, and they depended on their instincts to survive.
An expansionist is someone who wants to increase the size of the country or the number of people who live there. They believe that by doing this, the country will be better off.
To categorize is to group things together in a way that makes them easier to understand. Categorizing can be a useful way of organizing your ideas.
Gatherers are people who collect things. They might collect food, or they might collect materials that they can use to build something.
When something is uninhabitable, it is not able to be lived in or used. This can be because of a natural disaster, war, or some other problem.
Terraforming is the process of modifying a planet or planet-like body so that it can be inhabited by human beings. This can involve things like changing the climate, changing the environment, and adding new plants and animals.
A supercluster is a group of galaxies that are very large and organized. They are usually found near the centers of large galaxies.
Notepads are notebooks that are used for taking notes and recording your thoughts. They are usually very small, so they can be easily carried around.