loss of habitat for millions of species
It was the planet Venus that made the spacecraft Magellan enable the scientists to make an extensive research. The spacecraft Magellan was a robotic space probe that was launched to observe the planet Venus and calculate the gravitational field of the planet.
The appropriate response is optic, photograph, medic, or surgical instruments. US-Mexico exchange is very nearly a remodel. US President Donald J. Trump says he needs to quicken converses with renegotiating the North American Free Trade Agreement, an arrangement he says has been a "disaster" for America laborers. Trump has boasted a 20% import charge on every single Mexican item to back his outskirt divider.
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:
<u>Relative dating</u>
Explanation:
Usually the age of formations of a rock is categorized in a geologic time scale.
There are two different types of geologic time scale;
a. Relative dating sequence
b. Absolute dating sequence
The correct sequence from bottom to top is the relative time dating. The Relative dating shows rock ages in their order of occurrence (from Bottom to Top).
These are examples of relative dating sequence:
- Superposition,
- Crosscutting Relationships,
- Sequence from bottom to top,
- Inclusions,
- Faunal Succession.
