Answer: B - help map the ocean floor
Explanation: GPS which is an acronym for Global Positioning System is a global satellite based location and navigation system owned by the US Government. It was first used by the US Air Force in 1978. It's main purpose is to show a GPS user location and time information from anywhere on earth, where there is an unobstructed line of sight from the precise location to 4 or more GPS satellites. GPS is commonly used on land (obviously through every day use like when you use an uber) and in the air (pilots use GPS signals when they fly).
GPS can be used to track pets if there's a tracking device on their collars.
GPS is also used in taxis and can be used to track a cab after a hurricane.
Ordinary people can use GPS to collect information for scientists - an example of this would be taking a new undefined route on Google maps therefore adding to their archive of known routes/areas.
However GPS signals cannot penetrate water - sea water especially. Hence the answer is B
The correct answer is <span>C. One-half.
That is a massive rise considering that only 7% lived in suburbs in 1900.
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The closest star to the sun, Proxima Centauri, was recently found to have a planet in its habitable zone. Proxima Centauri is a main sequence star with spectral type m. It would habitable zone differs from the habitable zone of our sun Compared to our own, it would be far closer to Proxima Centauri.
<h3>What is the Proxima Centauri? </h3>
- Small, low-mass Proxima Centauri is a star in the southern constellation of Centaurus, 4.2465 light-years from the Sun.
- Its Latin name translates to "star closest to Centaurus."
- It is the known star that is closest to the Sun and was found in 1915 by Robert Innes.
<h3>Is the planet Proxima Centauri one?</h3>
- Super-Earth-sized exoplanet Proxima Centauri b revolves around a M-type star.
- It has a mass of 1.27 Earths, orbits its star in 11.2 days, and is 0.0485 AU away from it. In 2016, news of its finding was released.
Learn more about Proxima Centauri here:
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Answer:
1. Appalachian Mountains
2. Mississippi River
3. Andes Mountains
4. Atacama Plateau
5. Cape Fold Mountains
6. Kjolen Mountains
7. Great Himalayas (Mts)
8. Volga River
9. Scandinavian Mountains
10. Niger River
