Answer: "the Earth's mantle" .
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The asthenosphere "floats" on the "mantle" [of the interior] Earth.
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If the coast-to-coast distance is about 2900 miles, it will take about ...
... (2900 mi)/(186000 mi/s) ≈ 15.6 ms
for the signal to travel coast-to-coast at light speed.
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There are time delays due to the amplifiers and repeaters required in the path, and due to the fact that the signals don't actually travel at the speed of light in a wire.
A test of internet speed between Seattle and Washington, DC shows a round-trip time of about 87 ms when traffic is light. Modern communication channels tend to be faster than the telegraph (especially when measured in words per minute).
Answer:
195 countries
Explanation:
There are 195 countries in the world today. This total comprises 193 countries that are member states of the United Nations and 2 countries that are non-member observer states: the Holy See and the State of Palestine.
Answer: Organizing or joining a campaigning group in your local community is a great way to meet like-minded people and take action on the issues you care about. Local groups can help spread the word about Amnesty's campaigns with stalls at music events, bars or festivals