The Earth’s interior is composed of several layers: the crust, the mantle and the core. Scientists used waves and their speed to study the Earth's interior. The speed of seismic waves is affected by the properties of the material the waves pass through. The stiffness of material affects the speed of these waves. P-waves, or pressure waves, go through both liquids and solids, while S-waves, or shear waves go through solids but not liquids. The following helped scientists understand that Earth's interior is liquid: S waves cannot travel through liquids. Correct answer: D
Rollin down a backwood, Tennessee byway. One arm on the wheel, holdin my lover, with the other.
Answer:
The Pampas region has a big economic impact as it is the agricultural heart of Latin America.
Explanation:
The Pampas is a region that is mostly comprised of lowlands. Naturally, it is a biome where grasses dominate. The soil is highly fertile and the region as it is is relatively large. Humans have easily seen the potential of the Pampas and spend no time converting it in an agricultural landscape.
Latin America is a region that heavily relies on agriculture, both farming and raising cattle. Large, relatively flat land with fertile soil is excellent for farming, so the Pampas has been heavily exploited for the large-scale production of agricultural goods. Also, raising cattle is among the highest in the world in Latin America and it is constantly growing as a sector, and grasslands are needed to sustain the cattle, so the Pampas again is the place to exploit for it. While this has a big and positive economic impact, the effects on the flora and fauna of the Pampas have been devastating, to say the least.
