Describe the difference between a modified simple stomach (equine) and a monogastric

Need in all of themmm only answer if you know pls

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space. b. we'll know it immediately because it will be brighter than the full moon in the sky. c. we won't know about it until 600 years from now. d. none of the above.

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?