No system is completely closed off from its surroundings. which represents a system that is almost completely closed?
a. a wood-burning fireplace
b. a washing machine
c. a capped soda bottle
d. a pot of boiling water
i thinks its
c.

what subject is this

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: