The D.A.R.E. program (“Drug Abuse Resistance Education”) began in 1983. In this program, police officers taught special 45-minut
e lessons in classrooms about the dangers of drugs. However, the program was shown to have very little effect; there was only a small, short-term reduction in tobacco use, but no reduction in alcohol or marijuana use. Long-term rates of teen substance abuse did not change significantly. In 1998, behavioral scientists began looking for different ways to teach this program. The new D.A.R.E. curriculum is called “keepin’ it REAL,” and students spend most of their time practicing refusal strategies with friends rather than being lectured on the possible effects of drugs. The “REAL” acronym stands for the four main strategies the students practice: Refuse, Explain, Avoid, and Leave. There is also much more emphasis on teaching students how to make safe and responsible decisions in all areas of life.
This approach has been shown to be much more effective. Studies of thousands of students show that those who have been through the program use drugs and alcohol less than students who have not been through the program. Additionally, those who were already abusing substances before beginning the program were more likely to stop using the substances. The effects on students’ antidrug attitudes also lasted much longer.
Based on the excerpt, which statement is true?
Antidrug campaigns have little effect on how much students use drugs.
Lots of students use tobacco, but very few use alcohol or marijuana.
Antidrug campaigns can help prevent substance abuse, but cannot reduce it.
Practicing refusal strategies can help students stay sober.
<em>A sound </em><em>medium</em><em> is defined as channel through which sound can travel or be transmitted. </em>
Sound medium could be in the form gases, liquids, solids or plasmas. Space is made up of vacuum and therefore, has no medium within it. Hence, space cannot transmit sound in any form or allows sound to travel through it.
The phenomenon of superconductivity is due to the attractive force between electrons from the exchange of the phonons that cause the bound pair of electrons known as cooper pairs .
A strong electron -phonon intercation is suitable condition for superconductivity and high resistance .