Answer:
alcohol
Explanation:
alcohol is made with ethanol and it alters with the parts of an eye
Answer:
The exact physical causes of colour blindness are still being researched but it is believed that colour blindness is usually caused by faulty cones but sometimes by a fault in the pathway from the cone to the brain.
Depends on where, why, and for how long it's been hurting. Usually ice or heat will help in the process of pain relief. If that doesn't help of ice or heat from 15 minute intervals for an hour, speak to a doctor.
