Point out the positions of Russia, Canada and Brazil in the five major zones of the earth.

It is pointed out that the positions of Russia, Canada and Brazil in the five major zones of the earth are introduced as follows:

Most of Russia and Canada are located in the cold zone, and only the south is located in the north temperate zone.

Most of Brazil's territory is located in the tropics, and only a small part of the south is located in the south temperate zone.

Most of our country is located in the north temperate zone, and only a few areas in the south are located in the tropics, with no frigid zone.

Advantages: Because most of Russia and Canada are located in the northern cold zone, the cold season is very long in a year, which is not conducive to the development of agricultural production. Brazil is located in the tropics, which is beneficial to the development of tropical agriculture, but its agricultural production is relatively simple. Most of our country is located in the north temperate zone, but there are also a few tropical areas, with good light and heat conditions, which is conducive to the development of diversified agriculture.

Extended data:

The temperature zone in China.

In China, accumulated temperature is used to divide temperature zones. Most crops can grow actively only when the daily average temperature rises above 10℃, so the days when the daily average temperature is continuously ≥ 10℃ are usually called the growth period.

The total temperature accumulated by the daily average temperature during the growth period is called accumulated temperature. The accumulated temperature of an area reflects the heat status of the area. According to the distribution of accumulated temperature, China has divided five temperature zones and a special Qinghai-Tibet Plateau. The heat in different temperature zones is different, the growth period is different, and the farming system and crop species are obviously different.