Please give me some information about the following topics..?

1. marijuana
a. immediate effects of marijuana
b. long term effects of marijuana
2. smoking and health
a. harmful substances in cigarette smoke and their hazardous effectsPlease give me some information about the following topics..?
1.marijuana is a green ,brown or gray mixture of dried, shreded leaves,stems, seeds, and flowers of the hemp plant.it is mind -alterig thing containing THC
2.immediate effects:-
a.problems with memory
b.distorted perception
c.trouble with thinking, problem-solving
d.loss of motor co-ordination
e.increased heart rate
3.long term effects:-
a.cancer
b.damages immune system
c.lung infections

SMOKING AND HEALTH
smoking is injurious to health.it is bad for you
1.harmful substances in cig. smoke:-
a.TAR-a carcinogen
b.NICOTINE-addictive n increase cholestrol levels in body
c.CARBON MONOXIDE- reduces oxygen in body
d. components of gas n particulate phases whic causes COPD
2. Effects:-
a.cardio-vascular diseases-thrombosis etc
b.cancer
c. COPD
d.impotence
e. premature babies
http://www.nida.nih.gov/dirreports/dirre...