Answer:
1, 3 and 5 are true.
Explanation:
A smaller planet doesn't have the gravity to hold and atmosphere (with oxygen) or water. A larger earth would hold a thicker atmosphere, which would contain more ammonia and methane.
C. 25, i got that by looking at how many lines are in between 0 and 50. which is 2. so u divid 50 by 2 and get 25
Total land mass of Europe is 10 million square kilometers.
The question is tricky since there is no natural border between Europe and Asia, which makes the calculation of the exact are problematic - so the number is actually arbitrary and approximate.
Hot hot magma at least i think
