Answer: c
Explanation:
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Answer:
C. The stratum contains iridium
Explanation:
The Asteroids are large rocky bodies found on the orbit of the sun.If a fragment of a asteroid falls on the earth it is known as the meteorite According to Luis and Walter Alvarez they stated that a huge asteroid strikes the gulf coast of mexico that killed many species o earth including the dinosaurs.this might be the reason for extinction of dinosaurs.Scientists and researchers reported that more than one asteroid involved in extinction of species of the earth.
Forgetting names and places appears in stage beginning of alzheimer's disease.
A standardized system helps and allows scientists to properly name and identify organisms.
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