Answer:
4 billion years
Explanation:
Scientists have found the oldest known rocks on Earth. They are 4.28 billion years old, making them 250 million years more ancient than any previously discovered rocks. Earth formed about 4.6 billion years ago from a disk of gas and dust circling the sun.
The population of humans on earth has reached its carrying capacity or the maximum number of individuals an environment can support over time without destroying or degrading it, is determined by several key factors. Food availability, water, and space
The impact of so many people on the environment Two major forms follow
- the consumption of resources such as land, food, water, air, fossil fuels, and minerals.
- Consumption-related waste such as air pollutants, water pollutants, toxins, and greenhouse gases.
Population growth is the growth of the population on earth. For most of human history, our population is relatively stable. However, innovation and industrialization have made energy, food, water and medical supplies more accessible and reliable.
Learn more about population growth here:brainly.com/question/829450
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The Nile river is the longest river in the world, followed by the Amazon river which is the second longest.
