Based on Earth's geology what would you suspect caused these valleys?
<u>A. Steam erosion</u>
Answer:
in order, blood vessels, capillary,artery,vein,cardiovascular system, ventricle, aorta, dont know 8 but nine is oxygen
Explanation:
http://1kai.dokkyomed.ac.jp/mammal/en/genus_list.html
not me :(
from Myanmar aka Burma
