The correct answer is B. Lava flows, pyroclasts.
Explanation
A volcano is a mountain or hill that has an opening through which gaseous, liquid or solid materials can escape from the interior of the Earth. At the top of this cone, there is a concave formation called crater or chimney. When activity occurs in a volcano it is because it is erupting. Also, when it is erupting, the molten rock that comes from the Earth's mantle, known as magma, comes out. Once the magma comes to the surface, it loses the gases it contains because it evaporates, and when it drains the slopes of the cone it is known as lava, which flows from the top of the volcano. Finally, the waste expelled by a volcano through its crater during an eruption is known as pyroclasts. So, the correct answer is B. Lava flows, pyroclasts.
Two questions which arises in my mind about aurora borealis are:
- Why does aurora borealis occur?
- Why does aurora borealis occur in a particular time of the year?
Answers:
- As solar wind approaches the Earth, it meets the Earth's magnetic field. In the ionosphere, the ions of the solar wind collide with atoms of oxygen and nitrogen from the Earth's atmosphere. The energy released during these collisions causes aurora borealis.
- Aurora borealis is active the whole year. Since it needs to be dark in order to see aurora borealis in the sky, late August/September through the very beginning of April is the best time to go to a destination located in the aurora zone for a chance to see them.
Note: These are the questions which arises in my mind only. It may differ from person to person.
Hope you could understand.
If you have any query, feel free to ask.
Answer:
cali is dry outside of the mountains
Answer:
Two effects of the Silk Road are the sharing of technological advancements and the spread of the plague.
Explanation:
The Silk Road was a network of trading routes that connected East Asia, Southeast Asia, South Asia, Central Asia, the Middle East, Europe, and northwestern Africa. This trading network has been functional for several thousand years and it has had a lot of positive effects on humanity, but also the occasional negative one.
One big positive effect has been the sharing of technological advancements between the different civilizations, which has led to improvements in the living conditions, exploration, and further advancements all over the areas that are connected with this network. One big negative effect has been the plague. Through the extensive trade of goods, the plague managed to find its way from East Asia all the way to Europe, and it had such a negative effect on the population that it contributed to big geopolitical changes, and it was the last time when the human population dropped.
