... by splitting it.
They split Iran (Persia) into three parts: the Russian one, the British one and a neutral zone in the middle of it (the neutral zone was inhabited and quite big). So they both took care only of their own part.
Subsistence agriculture<span> is self-sufficiency farming in which the </span>farmers<span> focus on growing enough food to feed themselves and their families. The output is mostly for local requirements with little or no surplus for trade. The typical subsistence farm has a range of crops and animals needed by the family to feed and clothe themselves during the year. Planting decisions are made principally with an eye toward what the family will need during the coming year, and secondarily toward market prices.</span>
B, horse archers, is correct. The Mongols were able to develop saddles to stay put on their horses while they fought, allowing for more balance while attacking. This made it so they could shoot others while they rode.
The Middle East used to be an important route for oil and fabrics and this huge commerce market Istanbul used to be the merchant capital