QUESTION 5 Chapter 3.2. What is effusive volcanism? O a When large amounts of ash are erupted out of a volcanic vent O b. When l
ava comes out of a vent or fissure and then spreads out over the landscape O c. when ejected volcanic rocks stream down the sides of volcanoes powered by hot expanding gas O d. When a volcano erupts hot gases that diffuse into the atmosphere QUESTION 6 Chapter 3.2. Table 3.2. What does the Volcanic Explosivity Index (VEI) tell you about a volcanic eruption? a. A description of how explosive it was O b. The volume of pyroclastic materials that were erupted cThe height of the cloud column erupted O d- All of the above QUESTION 7 Chapter 3.2.1. What is the difference between magma and lavai? OaNone, the two terms can be used interchangeably. O b. Magma is melted rock beneath the surface, while lava is melted rock on the surface. c. Magma is basaltic whereas lava is peridotite. O d. Magma is what is produced at mid-ocean ridges, while lava is what is produced at subduction zones.
QUESTION 5, the right option is c. when ejected volcanic rocks stream down the sides of volcanoes powered by hot expanding gas
QUESTION 6, the right option a. A description of how explosive it was.
QUESTION 7 b. Magma is melted rock beneath the surface, while lava is melted rock on the surface.
Explanation:
Unlike explosive eruptions, effusive eruptions occur when magma reaches the surface and gently spills on the sides of the volcano. As dissolved gasses expand escapes easily prompts lava flows downhill.
The Volcanic Explosivity Index (VEI) measures the explosiveness of a volcanic eruption taking into account the amount of pyroclastic material, including the explosion height as well as its duration.
Magma refers to molten rock stored in a chamber inside the earth's crust when it reaches the surface through a vent, it is called lava. Thus, their main difference is a matter of location.
Before, any form of extensive research was performed on the solar system we believed that, there are over nine planetary bodies, along with the satellites and the sun inside our solar system in a given sequence or a pattern. As, these celestial bodies are analyzed each time by the scientists, research workers, and astronomers. While, there are some standards set for each celestial body to be attributed as a planet, star, or any satellite etc. And for that reason, when the research workers analyzed the ninetieth and the far most planet from the sun which is also known as "Pluto", named after a Greek God.
We can say that its properties were far different from those that any planet had and thus it was analyzed for a very long time, as to know more about it and fortunately we were able to find out that it is completely one-of-a-kind the Kuiper Belt(of trans-Neptunian objects) inside the solar system.
And that is how the research workers decided that Pluto, which was once considered as planet is no more listed as one but it is a less planetary object present inside the Solar system.
