The strong, lower part of the mantle
between the asthenosphere and the outer
core

the answer to your question is:

c. complementary base-pairing

answer: although many types of viruses can cause a common cold, rhinoviruses are the most common culprit. a cold virus enters your body through your mouth, eyes or nose. the virus can spread through droplets in the air when someone who is sick coughs, sneezes or talks. theres your answer

explanation:

geologic time scale (for gradpoint) =)