It Is Believed That the Two Main Reasons for Mass

question 16

Multiple Choice

It is believed that the two main reasons for mass extinctions in Earth's history have been

• A) collision between Earth and a large celestial body and human intervention.
• B) global warming and human intervention.
• C) human intervention and shifting of Earth's continents.
• D) global warming and shifting of Earth's continents.
• E) collision between Earth and a large celestial body and shifting of Earth's continents.