Early humans typically sought to settle near fertile land, such as river valleys and plains, because these areas provided abundant resources for agriculture and hunting. Proximity to water sources, like rivers and lakes, was crucial for drinking, irrigation, and attracting wildlife. Additionally, regions with mild climates and natural shelters, like caves or hills, offered protection from harsh weather and predators, making them ideal for early human habitation.
Humans didn't develop a circulatory system. Early forms of circulatory systems developed in the first animals and organisms to roam the earth. As these species evolved through speciation and genetic variation, new species came to exist that also had circulatory systems. Over time, the systems became more complex and efficient (compare the cardiopulmonary circulatory system of the human compared to the circulation of a fish). Therefore, without circulatory systems there would be no humans nor would there be life as we know it
Sand would settle first, as it has the smallest particle size and can easily compact together. Boulders, being the largest, would settle last due to their size and weight. Pebbles would settle between sand and boulders in terms of settling time.
Of the three, only mercury (a liquid metal) is heavier than water and would sink to the bottom. Gasoline is partly miscible (forms suspensions in water), while turpentine has a lower density than water and would float on top.
Before humans invaded an area, it was inhabited by various forms of wildlife such as animals, birds, insects, plants, and marine life. The specific types of flora and fauna would have depended on the ecosystem and geography of the area. These creatures would have occupied and adapted to the environment in which they lived.
Survival of the fittest, i think if a virus could kill all of mankind it would have happened, or 2012 will answer this.
Early humans would have first gone to Europe. Australia is a island and early humans would have probably walked to europe far before they rode the ocean to Australia.
The Netherlands was early to settle but ended up with the least amount of land.
It is not possible to know for certain, but early humans likely communicated using gestures, vocalizations, and eventually simple sounds and words. These forms of communication would have allowed them to cooperate and survive in groups.
They most likely would not. They would be far more likely to settle by a source of water, fertile land and ample game.
Early humans would have first gone to Europe. Australia is a island and early humans would have probably walked to europe far before they rode the ocean to Australia.
Some early attempts at settlement succeeded
Fertile soil, abundant water, security.
Have to work by hand
Early humans were likely hunter-gatherers who lived in small groups, relied on stone tools for various activities, and had a nomadic lifestyle, moving from one place to another in search of food and resources. They would have also developed basic forms of social organization and communication to survive and thrive in their environments.
Some early attempts at settlement succeeded
Studies can relate early humans that lived many years ago in different ways. They would go by stories, clothes and books.
Early humans likely did not ride on the backs of animals as a primary mode of transportation. Instead, they would have walked or used simple forms of technology, like canoes or rafts, to travel over land and water. Domestication and riding of animals for transportation purposes came much later in human history.