<h3>O rotates backwards</h3>
Explanation:
<h2>#caretolearn❤️</h2>
Answer:
sry i dont know yrr so sry gor that
Answer:
For early earth, it was filled with loads of oxygen and could kill humans if they breathed the oxygen that was in the air about 100 million years ago. This massive amount of oxygen cause massive creatures like the dinosaurs to exist. Current earth has an atmosphere with not too much oxygen.
Explanation:
brainliest
People with HIV are unable to fight off these rare diseases because they have a weakened immune system.
The Cretaceous–Paleogene (K–Pg) extinction event (also known as the Cretaceous–Tertiary (K–T) extinction) was a sudden mass extinction of three-quarters of the plant and animal species on Earth, approximately 66 million years ago.
