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Q: What obstacles prevent scientists from sending humans to Mars?
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What was the point of sending dogs in space?

Since scientists were not sure what would happen to humans in space, dogs were used as substitutes for experimental for data gathering.


What obstacles would humans have to overcome to live on Mars?

the moon


Scientists who argue that mordern humans evolved from a single population believe that humans came from the continent of?

Most scientists believe that humans originated in Africa.


What other planets have you humans sent space probes to?

If by humans visiting you mean , Which planet's have had humans land on that planet the answer is none. The only other place in space that humans have visited is the moon.


Scientists think humans first appeared in the of the geologic time scale?

Humans


What have scientists found about humans and yeast?

Humans are stupid and yeast makes bread.


What does Homo Habilis mean as in what scientists called the first humans?

Homo habilis means "handy man" in Latin, reflecting the species' ability to use tools. Scientists consider Homo habilis as one of the earliest members of the Homo genus, distinguished by their primitive stone tool-making abilities.


Why are they sending humans to live on the moon?

At this time there is no current mission to send humans to live on the moon.


Can humans prevent earthquake?

no


what can humans do to prevent tornadoes?

Nothing. We cannot prevent tornadoes.


What are the major obstacles to bringing humans deeper into space?

-- cost -- popular support


What are major obstacles to bringing humans deeper into space?

-- cost -- popular support