Answer:
D) The inner portions of the disk are warm from the protostar making the heavy elements remain there.
Explanation:
Over the past 50 years, six Nile Basin countries have built 25 hydroelectric dams.
<span>The subduction of oceanic crust under continental crust predominantly produces violent and explosive types of volcanic eruption.
This is because this type of lava is created at low temperatures, but would cause a violent and explosive eruption at some point in time.</span>
<span>An Aztec person would see their own religious beliefs and practices as an integral part of their identity and culture. A European visitor, who would likely never have been exposed to such a system, would likely think of the beliefs as outlandish and without merit, even though the very same thing could be said about his or her own views through the eyes of the Aztec person.</span>
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.
