Answer: Gateway drugs
Explanation: Gateway drugs refers to the fact that the use of a psychoactive drug is associated with a greater probability of using more drugs. The theory about these drugs has been around for a long time. These drugs are easily accessible and may seem harmless to some extent, but they create addictions, leading the person to want to consume something stronger.
Hazard symbols<span> or </span>warning symbols<span> are recognizable </span>symbols<span> designed to warn about hazardous materials, locations, or objects, including electric currents, poisons, and </span>radioactivity<span>. The use of hazard symbols is often regulated by law and directed by </span>standards organizations<span>. Hazard symbols may appear with different colors, backgrounds, borders and supplemental information in order to specify the type of hazard. Warning symbols are used in many places in lieu of or addition to written warnings as they are quickly recognized (faster than reading a written warning) and more universally understood (the same symbol can be recognized as having the same meaning to speakers of different languages).</span>
They must contract and relax to move the bones for movement
If you mean why here you go then
Answer:
Learn these healthy habits to protect yourself from disease and prevent germs and infectious diseases from spreading.
Handle & Prepare Food Safely. ...
Wash Hands Often. ...
Clean & Disinfect Commonly Used Surfaces. ...
Cough & Sneeze Into Your Sleeve. ...
Don't Share Personal Items. ...
Get Vaccinated. ...
Avoid Touching Wild Animals.
I hope it's help for you