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.
Answer:
Explanation: I need a answer too lol
Answer:
circulatory and respiratory
Explanation:
The body system of Birds possesses a higher arrangement of organs to perform a particular function. The organs form a system which includes the organs and associated structures.
When the biologist observed the shortage of the dissolved oxygen and increase in the level of dissolved carbon dioxide, this could be the result of the failure of the circulatory system which supplies these gases on the body and the associated respiratory system which helps in the exchange of these gases with the atmosphere.
Thus, circulatory and respiratory is the correct answer.