Paddies are another name for rice fields. We can see these especially in various Asian countries, where rice is a staple food and agricultural feature.

Slash and burn agriculture is an adaptation to the poor soil quality in rainforest climate regimes and is sustainable at small scales with long fallow times. Slashing and burning vegetation adds nutrients to the soil that can be used to grow food. Long fallow times are necessary to allow vegetation to grow so that it can once again be slashed and burned to recharge the nutrient levels in the soil.

While subsistence agriculture is a good answer, it is not the best answer because subsistence farming does not require long fallow times to be sustainable. Commercial farming is not viable at small scales or with long fallow times because both of these constraints reduce the profit that can be made from a tract of land. Organic agriculture is not a good choice because it does not require long fallow times or small scale to be sustainable. Nomadic herding is a type of agriculture related to keeping livestock. Nomadic herding is not a good answer choice here because it is not well adapted to the poor soil quality found in rainforest climate zones and does not require long fallow times.

All of these countries are predominantly “intensive farming” countries, with the exception of the United States of America which is more of an extensive farming country. This is because most agricultural produce in the United States is grown on large swathes of land in relatively depopulated areas of the country, it also involves a great deal of machinery and requires relatively little human labor.

Only about 15 million people are pastoral nomads, encompassing about 20% of the Earth's area.

Transhumance is defined as the seasonal movement of livestock (herding) between mountains and lowland pastures. Typically, livestock is moved to the lowlands in the winters and to the highlands in the summers.

Historically speaking the ties between Ukraine and Russia are complex and layered. The progenitor of the Russian Tsarist Empire began in Kiev (the modern-day capital of Ukraine) before moving further east to Moscow. During the twentieth century Ukraine came under the control of the Soviet Union and due to its fertile lands came to be known as “the breadbasket of the Soviet Union.” As you may be aware in more recent times relationships between Ukraine and Russia have reached a critical point and it now serves (unwillingly) as something of a “buffer state” between Russia and the west.

Approximately one third, or thirty-three percent, of the world’s labor force is engaged agricultural work. The number has been steadily declining throughout the history of human civilization.