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Because ocean levels were lower and colder during the ice ages allowed early humans to travel from one continent to another?
During the ice ages, lower sea levels exposed land bridges that connected continents, making it easier for early humans to migrate. These migrations played a crucial role in the peopling of many regions around the world.
How many humans are on Earth at this time?
As of 2021, the estimated global human population is around 7.9 billion people.
How many ice ages in the last million years?
There have been around eight ice ages in the last million years, with each ice age lasting for tens of thousands of years. These ice ages were characterized by the expansion of glaciers and ice sheets over large portions of the Earth's surface, resulting in cooler temperatures and lower sea levels.
Approximately how many megatons of carbon dioxide do humans produce by burning fossil fuels each year?
The burning of fossil fuels by humans produces around 36 gigatons (36,000 megatons) of carbon dioxide each year.
How many ice ages have we had?
There have been five major ice ages in Earth's history, with the most recent one ending about 11,700 years ago. These ice ages were periods of prolonged cold temperatures and glaciation.
If i ate a shark then it swallowed me how many cups of chocolate will you get?
Around 34, since sharks usually have 12 and humans usually contain around 22.
How many different ages are there of humans?
It ranges from just conceived to 110 and possibly over.
Because ocean levels were lower and colder during the ice ages allowed early humans to travel from one continent to another?
During the ice ages, lower sea levels exposed land bridges that connected continents, making it easier for early humans to migrate. These migrations played a crucial role in the peopling of many regions around the world.
How many sharks are there in the world that are not extinct?
There is no definite answer, since sharks are always repopulate as humans. So since they keep making more, there is no answer to how many there are now
How many humans in Scotland?
Around 5.2 million human.
What do many historian consider as marking the end of the middle ages?
around 1500 A.D.
How many generations of humans have there been throughout history?
The exact number of human generations throughout history is difficult to determine, but estimates suggest that there have been approximately 100-150 generations since the emergence of modern humans around 200,000 years ago.
How many ways science is helpful to humans?
Humans depend entirely on science and research. Science revolves around every move of humans. So, we can't guess in how many ways it is helpful.
When is the next ice age happening?
Ice ages are unpredictable events, although by many definitions we are currently in the middle of one now; the current ice age has been going since around 2.6 million years ago.
7 years how many human years?
In general, for every 1 year a dog or cat ages, humans age about 7 years. This is used to estimate the biological aging rate between humans and pets.
How many numbers of tigers are left?
to many to count but not as many as their used to be. Because of humans of coarse. but it is around 1500
How many sex cells do humans have?
as in gametes? per human there is around 24
