True.
In the upper layers of the atmosphere, it blocks UV radiation from the sun; however, in the lower layers, it is a pollutant.
The next thing for the nurse to do is to write down the normal breath sound in the patient's record. Soft, low pitched sound over the base of the lungs indicate normal breathing. The sound heard will be different if the lungs are infected. Thus, the lungs of the patient been examined is working perfectly; this should be documented in the patient's record.
Answer: false, for example, if a frog eats flies, and the flies are land animals, if they go extinct the frogs could die off, meaning any fish or water dwellers that eat the frogs can starve and cause a large chain reaction.
Hope this helps ^^
This resemblance confers an advantage upon one or both organisms by which the ... Other inedible species resembling the first.