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:
Due to the impact of its cultural and political achievements during the 5th and 4th centuries BCE
Explanation:
<span>Distribution of mineral deposits would be the answer since 'economy' deals with deposits as the rest of the answers deal with weathering and they don't include an economics. </span>
Answer: Extreme heat and pressure from deep within Earth cause changes to the rocks appearance, structure, and composition.
Explanation:
Remember!
- Sedimentary rocks are types of rock that are formed by the accumulation or deposition of small particles/sediments.
- Igneous rock is formed through the cooling and solidification of magma or lava
- Metamorphic rocks are changed by heat and pressure
(A) and (C) are the answers
Explaination :
The Eye Wall: a hurricane's most devastating region. Located just outside of the eye is the eye wall. This is the location within a hurricane where the most damaging winds and intense rainfall is found. The image below is of a hurricane (called cyclone in the Southern Hemisphere).
