Here're the reasons;
1)The right neighbours.
2)The right core.
3) The right star.
4) The right moon.
5) The right crust.
6) The right ingredients.
7) The temperature and ingredients.
Demographers study population: migration, birth and aging/death.
urban planners study land for environments for population to see if the land is good enough for a community to build on, that water is safe and the air is clean enough.
they find areas fit for neighborhoods to be built and or cities. make sure everything is safe and the fight size in land.
Answer:
the biosphere
Explanation:
The carbon cycle is crucial for the circling of energy in the biosphere. This is due to the usage of the carbon by the living organisms, especially the ones that are producers. The producers are able to perform photosynthesis, thus making their own food, but this process requires carbon, and without the carbon it will not be possible. The producers are the basis of all ecosystems, so the energy they produce is transferred through the trophic levels. Ones the organisms die, the carbon is taken by the producers again, and the process continues, with the energy circling around constantly.