No, because plants produce O2.
humans
thetsys
Likely the human activity that is most closely associated with the emergence of viruses in humans is urbanization. The closeness caused the viruses to promulgate more efficiently than in communities where there not as many people.
On average, humans can survive around 3 to 5 minutes without oxygen before experiencing severe brain damage or death. The exact time can vary based on individual health, fitness, and other factors.
No
No, humans could not have survived on Earth over two-and-a-half billion years ago as the atmosphere at that time was not conducive to supporting human life, lacking essential elements such as oxygen. Additionally, without the presence of plants to produce oxygen through photosynthesis, humans would not have had a sustainable source of breathable air.
They fished and hunted.
Answer 1Whales first evolved roughly 54 million years ago.Homo sapiens (modern humans) evolved roughly 4 million years ago.Answer 2Whales and humans share a common ancestry in the clade of Boreoeutheria, dating back some 65 million years. By my best estimate, that's when the lineages leading to modern humans and modern whales went their separate ways.Modern whales, like the blue whale, form a diverse group of species, just like modern apes, like the humans, form a diverse group of species. On a geological timescale, there may not be much difference between the emergence of the modern species of whale from their basal clades and the emergence of modern species of ape from their basal clades.Comparing the emergence of modern humans to the emergence of whales isn't really a useful comparison. It's like comparing the emergence of vehicles to the emergence of the Audi A3.
They basically do what humans do to survive. Like humans need to eat to survive and we also need to sleep to survive.
no we drink to survive. from keyna
No, humans cannot survive in temperatures of 200 degrees Fahrenheit.
humans
The current approximate population of humans on Earth is around 7.9 billion.
It is impossible to tell what humans will look like in a billion years, if any humans are even alive then. We could change drastically, or not at all.
Cows can't survive on gas alone. Neither can humans. Both cows and humans need food and water to survive, not just oxygen (which is a gas we breathe).
idk, maybe humans cause there is 7 billion in 2011 and soon 9 billion in a few years
Some variance here but the spread on the emergence of modren humans, Homo sapiens, is from 200,000 to 100,000 years ago and in Africa.