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
<u>Answer:</u>
<em>b. Mitchell palmer
</em>
<em></em>
<u>Explanation:</u>
The sequence of raids occuring were called the Palmer Raids. These raids were aimed at capturing the immigrants and deporting them out of the United States. Palmer, the Attorney General, was responsible to lead and carry on the raids. World War I and Russian revolution resulted in fear and rejection for the immigrants in the US. This was named the Red Scare. This fear among the people of the US gave momentum to the Palmer raids. The immigrants and non-residents of the US were referred as aliens. The US Labor Department was upset by these raids as this went against their authority to deport people.
Answer:
upper mantle and lower mantle
Explanation:
You could make like a building somewhere high so when everyone gets a warning that a flood is coming they can go and leave there let’s there or like a boat like Noah’s arc
Hope this helps —- xoxo
The first one is a the second one is a i think the third one is a and the last one is b
