Answer:
based on the information given Jupiter is approximately 4 times the size of Earth
Warm water with no salt is the least dense
Answer:
To be sustainable is to be able to maintained at a certain rate. It's to keep things continuous and viable. For example, wind energy is sustainable compared to oil because wind is easier to get than oil. Another example is if a country only has about 10-13 crimes a year for 20 years, crime is sustainable in that country.
Is this not about a human? We only have one aortic arch