I think the three components are: environment, personal choices, and habits.
Drugs that break down a psychological barrier against doing other drugs are known as gateways drugs.
A very known gateway drug (or at least one that has been considered as such) is marijuana or weed. A drug that is being widely consumed in various countries and is also being sold as a legal drug in some countries.
<span>The lungs are the respiratory structure that controls breathing. They make up a substantial part of the respiratory system, along with the trachea, the ribs, the intercostal muscles and the diaphragm. Each lung contains small tubes called bronchioles which end in air sacs called alveoli.</span>
Light-sensitive cells in the retina at the back of our eye allow us to see. The human eye has two types: cones and rods. Rods are extremely efficient; a tiny amount of light can trigger them. They are responsible for our night vision.
Answer:
Yes its ture, in lasik eye surgery laser light pulses used to reshape the cornea by shave off its tissue.
Explanation:
LASIK is the abbreviation of laser in-situ keratomileusis. This procedure is done to people who are farsighted, nearsighted. In LASIK cornea is reshaped by lases light pulses to clear front part of the eye for efficient travel of light and properly focus on the retina which is present at eye's back side.
