Best answer gets !
the hole in the ozone layer is bad because

the hole allows more uv rays from the sun to reach earth
the hole allows oxygen to escape the atmosphere
the hole allows meteorites to hit the earth
the hole allows warmth to escape the earth

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

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: