Biology, asked by browntj2005, 7 months ago

How is modern Earth different from Earth over four billion years ago? (4 points)

a
Constantly bombarded with comets and asteroids

b
Little to no oxygen

c
High levels of ultraviolet radiation

d
Protective atmosphere

Answers

Answered by lalankumar99395
10

Answer:

Little to no oxygen.. please mark as BRAINLIEST ANSWER AND FOLLOW ME....

Answered by Hansika4871
1

Modern Earth has a protective atmosphere while Earth over four billion years ago did not have one. Thus, the correct answer will be option D, protective atmosphere.

  • Modern Earth is not constantly bombarded with comets and asteroids, but Earth over four billion years ago was.
  • We know very well that modern earth has plentiful oxygen which provides us with life. Earth over four billion years ago had little to no oxygen.
  • Modern Earth has an atmosphere and thus, does not face ultraviolet radiation which is very harmful. Earth over four billion years ago was constantly exposed to this ultraviolet radiation.
  • Modern earth has a protective atmosphere, which as mentioned above protects us from ultraviolet rays and performs several other functions. Earth over four billion years ago did not have an atmosphere. It had access to none of the protection and other utilities offered by the atmosphere to us.
  • Thus, the correct answer will be option D, protective atmosphere. Since modern Earth has a protective atmosphere while Earth over four billion years ago did not have one.

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