Hello There! ^_^
Your question: What material makes up earth's outer core..?
Your answer: A liquid iron- nickel alloy makes up the earth's outer core.
The answer is option A.
Hope this helps! =)
Railways are the most important means of passenger transportation in Japan, maintaining this status since the late nineteenth century. Government policy promoted railways as an efficient transportation system for a country that lacks fossil fuels and is nearly completely dependent on imports.
I hope this helps!!!!
I believe the answer is "D"
Can you explain a little more
