The correct answer is - A) subsistence farming.
Subsistence farming is the type of farming that is mostly practiced in the less developed countries. In here we have production that is just about enough for the needs of the country (and big portion of the production doesn't even come out on the home market, but you eat what you produce, or trade with someone you know). Also this type of farming is still based on primitive tools and is heavily dependant on the climate, and that makes it very unstable and more often than not people are starving because not enough food has been produced.
Answer: radiometric dating
Explanation:
The dating processes that is most accurate for calculating the age the earth is referred to as the radiometric dating.
The radiometric dating of different Rick's are utilized by scientists so that the age of the Earth can be known.
Therefore, the correct answer to the question is radiometric dating.
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.
Well biosphere needs all the sphere to live
So that people have to pay for their effort. As you know everyone in the community needs to earn money somehow in order to live.
Also used for copy protecting in short term to honor them as well