1. why does earth's moon have no atmosphere
- the average temp is too high
-there are no plants to release oxygen
-the moon is too far from earth
-the moon's gravity is too weak to hold onto gas molecules

2. on the moon , maria are
-meteoroid craters
-low flat plains
-rough mountains
-lunar seas filled with water

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!