Sagittarius A*: Identifying the Celestial Body
The question asks to identify what the term 'Sagittarius A*' refers to, based on the provided options.
Analysis of Options
- The term 'Sagittarius A*' is presented for identification.
- Option 1 describes a supermassive black hole.
- Option 2 describes two giant black holes.
- Option 3 describes a Supernova explosion.
- Option 4 describes a huge asteroid that passed very close to the Earth.
Conclusion based on Provided Answer
According to the provided information, the correct identification for 'Sagittarius A*' is:
a huge asteroid that passed by very close to the Earth
This identification focuses on the object being a significant asteroid and its close proximity to Earth.
Important Questions from Space Technology
If a major solar storm (solar-flare) reaches the Earth, which of the following are the possible effects on the Earth ?
1. GPS and navigation systems could fail.
2. Tsunamis could occur at equatorial regions.
3. Power grids could be damaged.
4. Intense auroras could occur over much of the Earth.
5. Forest fires could take place over much of the planet.
6. Orbits of the satellites could be disturbed.
7. Shortwave radio communication of the aircraft flying over polar regions could be interrupted.
Select the correct answer using the code given below :
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