When the Ottoman Empire weakened, Europe reacted by trying to take more control of Ottoman lands. Option 4 is correct.
The Ottoman Empire started to decline as a result of nationalism along with a weak economy, so, Europe attempted to take more control of Ottoman lands seeking to weaken the Empire.
The Ottoman Empire was a state that controlled much of Southeast Europe, Western Asia and North Africa between the 14th and early 20th centuries.
12+(16-6)/2
12+10/2
12+5
17
The answer is 17
They used dry farming and flood irrigation.