The inner core consist of only iron and nickel and it is so hot (9,000 degrees F.) that it gets hardened, however the outer core is liquid iron and nickel because cannot harden because there is too much pressure. Hope it helps! Merry Christmas!!!
Answer:
The presence of iridium in concentrations higher than 100 times the normal in the Cretaceous–Paleogene (K–Pg) boundary supports the Alvarez Impact Hypothesis.
Explanation:
Father and Son Alvarez argued that since iridium is present in extremely minute quantities on earth, its presence in very high concentrations in this layer which is thought to date back to 66 million years is evidence that an extraterrestrial impact took place which brought the iridium. The high destructive nature of the impact spread the iridium far and wide which deposited on the surface which is why it is present in this layer which dates back to that period.
Sounds like the answer is D because they usually purchase those cars to save gas or fuel also known as a source of energy.
plateau- a landform that has high elevation and a more or less level surface
A Tornado Forms in 4 Steps. Advertisement - Continue Reading Below. Precipitation should counter the updraft, but when winds blow precipitation out of the rising air, the updraft strengthens. When those tubes are ingested into the updraft, they become vertical and the storm acquires rotation, forming a supercell.
