PLEASE HELP ASAP WILL MARK BRAINLIEST Pls Pls PLS Help!! If a seismograph is 6,200 km from an earthquake, how long does it take the P waves to arrive? _

If an S wave takes 7 minutes and 20 seconds to arrive at a seismograph, how far did it travel? _

If a seismograph is 3,400 km from an earthquake, how long does it take the S waves to arrive? _

If an P wave takes 8 minutes and 20 seconds to arrive at a seismograph, how far did it travel? _

I know your late I say B the second answer

Explanation:

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.