Question

The potential threat from asteroid?​

Answer 1

A 140-meter asteroid will impact Earth on average every 20,000 years, according to Harris, and will unleash 300 megatons of energy, causing regional scale devastation. A 300-meter asteroid will impact Earth roughly every 70,000 years, unleashing 2,000 megatons of energy and creating continent-wide devastation...

Answer 2

Explanation:

A 140-meter asteroid will impact Earth on average every 20,000 years, according to Harris, and will unleash 300 megatons of energy, causing regional scale devastation. A 300-meter asteroid will impact Earth roughly every 70,000 years, unleashing 2,000 megatons of energy and creating continent-wide devastation.