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.
Each GPS satellite consist of the multiple atomic clocks that contribute to the precise time and data to the GPS in the signal forms and this data is decoded by the serves of the GPS satellite and shows an effective synchronization and each receiver and precise time is accurate and has a variety of activity around the world.
For an example of the Olympic committee wants all broadcast to show particular diving event at precisely the same time. Thus the receiver is set at the me time and in close synchronization. Ad us usually measured in the weeks and seconds and aero point of the night.
Rhyolitic <span>magma causes powerful and explosive volcanic eruptions. The correct option among all the options that are given in the question is the third option or option "C". Andesitic volcanoes also erupt explosively but the correct choice would be Rhyolitic. I hope that the answer has come to your help.</span>
Geothermal heat- to provide energy for process like subduction, melting and metamorphism (to drive plate tectonics) solar energy- for processes like erosion, weathering and transport
