When a man inhales air containing normal concentration of ${O_2}$ as well as $CO$ he suffers from suffocation because
$CO$ reacts with ${O_2}$ reducing its percentage in air
Haemoglobin combines with $CO$ instead of ${O_2}$ and the product cannot dissociate
$CO$ affects diaphragm and intercostal muscles
$CO$ affects the nerve of the lungs
Write a note on Morphine and Codeine.
Drugs like $LSD$, barbiturates, amphetamines, etc., are used as medicines to help patients with mental illness. However, excessive doses and abusive usage are harmful. Enumerate the major adverse effects of such drugs in humans.
If a regular dose of drug or alcohol is not provided to an addicted person, he shows some withdrawal symptoms. List any four such withdrawal symptoms.
Narcotic drugs
Why do some adolescents start taking drugs. How can this be avoided ?