The Ring of Fire.
Its called the ring of fire because of all volcanic activity surrounding the Pacific Ocean.
Mexico's location, climate, and physical features can be seen as natural resources, a very important ones. The location gives it a perfect location between the two continents and makes a trading rout, also it's location gives it multiple climate types. The climate makes it a desirable tourist attraction, also in the south and the coastal region on the east it has a lot of rain, the water is one of the most important resources in the world, the rivers are full all over the year so they can be used for producing energy, irrigation, drinking, fishing, while the more central part and the northern part that is arid and very sunny are excellent for getting energy from the sunlight. The physical features also contribute to the tourism, the central plateau made out of volcanic rocks has a fertile soil excellent for agriculture, but it's elevation also makes it very suitable place for human settlements. <span />
The answer is B.
The primary positive effect of the Columbian exchange was the introduction of New World crops, such as potatoes and corn, to the Old World. The most significant negative effects were the transmission of African populations into slavery and the exchange of diseases between the Old and New World.
the innermost part of the earth is called the core.
