Why is the population density lower in northern Mexico than southern Mexico? A
Much of northern Mexico is covered by dense, humid rain forest protected by the government.

B
Much of northern Mexico is covered by hot, arid desert that makes living there very difficult.

C
Most of Mexico's valuable oil reserves are located in the southern region of Mexico.

D
Most of Mexico's fertile farmland is located along the southern coast of Mexico.

The correct answer is B. Much of the northern Mexico is covered by hot, arid desert that makes living there very difficult.

Explanation

In the north of Mexico is the Chihuahuan Desert, an arid and hot zone of about 500,000 km² that makes it one of the largest deserts in America. This desert encompasses part of the Mexican states of Chihuahua, Coahuila, Durango, and Zacatecas. Therefore, this region presents great difficulties for human settlements. So the correct answer is B. Much of the northern Mexico is covered by hot, arid desert that makes living there very difficult.

if interdependence implies a two-way dependence, and if each partner is equally dependent on the other for success, then there is an equal commitment to the making the partnership successful. the advantage is sustainability of the relationship, the disadvantage is that decisions are "democratic" and therefore may take longer to reach and more likely to be a compromise (which is not always the best solution). as the interdependence moves away from equality, the decisions become more influenced by the more independent partner. in the extreme the relationship becomes more dictatorial and more like "master-slave". generally the relationship has less commitment in both directions and is more likely to be temporary.

if one generalizes (and one shouldn't), equity partnerships, which is probably what is implied by interdependence, can be slow to progress or change but durable. the extreme alternative, independent-dependent partnerships tend to be efficient but more fragile.

hope this but you will have to site your own evidence. : )