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Richard
Richard asked in Arts & HumanitiesHistory · 7 years ago

The mass extinction at the end of the Mesozoic Era was caused by ______.?

a.

solar radiation

c.

an ice age

b.

a meteor or asteroid colliding with Earth

d.

volcanic activity

2 Answers

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  • ?
    Lv 7
    7 years ago

    Current thinking is that the mass extinction was caused by a meteor or asteroid colliding with the earth. This event took place ca 65m years ago.

  • ammianus
    Lv 7
    7 years ago

    b.

    A meteor or asteroid colliding with Earth.

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