Sonar testing has caused whales to die in mass amounts.
Answer:
<em>hope</em><em> </em><em>it</em><em> </em><em>helps</em><em> </em><em>you</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>
Earth could not have supported the lives or humans and other living things. There was no oxygen in the atmosphere, and Earth's surface was extremely hot
This suggests that tetanus bacteria produces endospores.