Because:
Its far away.
The farther an object it is, the smaller it is.
Explanation:
1) Jupiter is a planet made entirely out if gas, therefore humans can't walk on Jupiter and Jupiter lacks oxygen.
2) Uranus is a Ice giant, that means it's very cold and humans would most likely freeze to death. Also Uranus lacks oxogen..
3) Neptune is the farthest known planet from the sun, that makes Neptune too cold to be lived on.
4)Pluto is far from the sun, which would make it very cold
5) Mars would be perfect for humans, but the o-zone lacks of oxygen. Scientists say, Mars could support like if we simulate life on earth. Mars is also humid enough to support life.
Answer:
The change in the ocean's temperature and salinity happens as we move further to the north and south of the equator. The reason for this is the icebergs and massive ice sheets. Icebergs after separating from the glaciers float in the oceans and start to melt. They provide cold and freshwater, lead to a change in the ocean. Antarctica and Greenland are the providers of the icebergs in the world.
Truman orders US forces to Korea .