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.
<span>The "Richter Scale" rates the strength of earthquake as a magnitude
Hope this helps!</span>
The best and most correct answer among the choices provided by the question is the first choice "Mercator projection map"<span>
A method of making a flat map of the Earth's surface so that the meridians and parallels appear as straight lines that cross at right angles. In a Mercator projection<span>, the areas farther from the equator appear larger, making the polar regions greatly distorted.</span>
I hope my answer has come to your help. God bless and have a nice day ahead!</span>
Answer: False
Explanation: The Ozone blocks the ultraviolet radiation
<span>continental shelf - continental slope - abyssal plain. </span>
