I need help with my Homework?

Question

What specific instruments were needed to gather each of the following types of data?

(a) demonstration of the ruggedness and youth of the ocean floor

(b) confirmation of repeated reversals of the Earth's magnetic field in the geologic past

(c) emergence of the seafloor-spreading hypothesis and associated recycling of oceanic crust

(d) precise documentation that the world's earthquake and volcanic activity is concentrated along oceanic trenches and submarine mountain ranges

Answer 1

i know the answer...but your basicly cheating...right...

Answer 2

Gee, I wish I had access to the information highway of the world when I was in school. I didn't have it this easy. Why don't you search on line for the answers? Or even better, figure it out yourself?

Answer 3

very expensive instruments, that's what kind! :)

Answer 4

Oh you want help? Didn't sound like that in the details..