4th option. the movement of people to cities.
Explanation:
This has put huge stresses on a range of natural systems, including the atmosphere[3],. The increase in the use of fossil fuels has been even greater than the increase in industrial activity. ... The characteristics of the systems that have led to these changes also make the problems hard to address.
The correct answer is C. Direct democracy.
In it, the people directly vote vote on policy initiatives, unlike nowadays where representative democracy dominates.
Answer:
forest
Explanation:
because there are more trees
