They took advantage of the chaos and anarchy plaguing the country
Explanation:
The Manchus succeeded as the ruling dynasty when the last Ming emperor died after the destruction of yellow river which unleashed the flood that destroyed hundreds of thousands of people coupled with the break down of social order, wide spread of smallpox and two people taking control of separate parts of the country and declaring new dynasties.
The answer would be C. increased nitrogen levels in ponds. Increase in nitrogen levels has to do with overgrowth of algae in ponds, which limits oxygen in ponds and has no relation to deforestation.
The Andes or Andean mountains are the longest continental mountain range in the world and they extend from north to south through seven South American countries.
