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
Answer:
The Tropics
Explanation:
The Tropics have lots of rainfall because of the geography making water rise and condense and rain more.
Answer:
Rain and wind will cause granite to break down and form soil over time.
Explanation:
Granite is an igneous rock, and it is one of the hardest rocks for that matter. Being an igneous and very hard rock, granite is not easy to break down and it takes a very long time, tens of millions of years in fact, and that is only if it is on the surface and exposed to the outside elements. Basically, this rock needs a very long period of time to get transformed into soil, but like any other rock it is not unbreakable and eventually, it starts to break up.
Two things that will have a big influence on the breaking up of granite would be rain and wind. The rain will cause chemical weathering while the wind will cause mechanical weathering. They will manage to gradually break up very small, fine, pieces of granite, and if they are supported by suitable climatic conditions and a lot of vegetation the process will speed up. Once the granite is broken apart and what is left of it is fine sediments, by mixing with the biomass it will form a soil.
Answer:
F
Explanation:
Look up a map and the center of Africa is majority desert and savanna.
Answer:
This evolution will trigger the event known as "galactic cannibalism."
Explanation:
Galactic cannibalism occurs when a galaxy "completely swallows" another galaxy, that is, it incorporates it and promotes a fusion between the two, forming a single galaxy. This occurs as the universe ages and the distance between galaxies narrows. However, this happens very slowly, mainly because the galaxies are located very far from each other, and it is necessary for the universe to age millions of years for galactic cannibalism to occur.
