Avoid long-term use in people who have or are at risk of lung problems, such as asthma or byssinosis (a disease caused by breathing dust). Marijuana may cause bronchitis, coughing, lung cysts, phlegm, reduced lung density, and wheezing.
Best Answer: A compound is something made up of elements (ie not one pure element). The word compound means something made of a combination of things - like a compound sentence or a military compound (made up of several buildings). Elements are the basic substances that make up the universe and cannot be broken down into different substances. Compounds are composed of two or more elements that have bonded to form one substance In short: Elements - cannot be broken down and bond to form compounds Compounds - two or more elements that have bonded to form a unique substance
1 Elements and Compounds are pure substances. 2  An element is a pure substance that cannot be decomposed into simpler substances. 3  Elements are listed in the Periodic Table of the Elements. 4  Each element has a 1 or 2 letter symbol. Elements are listed in the Periodic Table of the Elements. 2  Each element has a 1 or 2 letter symbol. 3  A compound is a pure substance that can be decomposed into simpler substances. 4  Compounds are made up of two or more elements.