I believe it can be warm because usually the surface below us is warm itself, causing the air to be warm as well. The temperature can vary as well
An artery carries blood away from the heart, a vein carries blood to the heart.
The answer is flourine
flourine some what sounds like flow so
flourine is a flowing element
Explanation:
Carbon-12 atoms have stable nuclei because of the 1:1 ratio of protons and neutrons.
Carbon-14 atoms have nuclei which are unstable. C-14 atoms will undergo alpha decay and produce atoms of N-14. Carbon-14 dating can be used to determine the age of artifacts which are not more than 50,000 years old.
Answer:
think I did this before and its V