What is a scientific question ?

a- can cats learn to sit down on command
b-why do black cats bring bad luck ?
c- are spotted cats cuter than solid colored cats?
d- why are persian cats so funny ?

ocean expansion, global warming is melting icebergs and causing water levels to rise.

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: