Iron and Nickel.
Hope this helps please mark this as brainliest answer
Over the past million years, Earth's globally averaged surface temperature has risen and fallen by about 5˚C in ice-age cycles, roughly every 100,000 years or so (Figure 2.1a).
Scientific Thinkers didn't accept it immediately because its has no proof or lack of information that needed to be prove by all others scienctific thinkers
Answer:
slab pull
Explanation:
Slab pull convection model suggest that cold oceanic lithosphere sinkd to great depths (the asthenosphere) and that as they sink, they pull trialing plates along.
