7 · en
Short, simple sentences with “harmful”, suitable for children and primary/elementary school, with common expressions and related words. You'll also find examples for middle and high school.
Using sunscreen helps reduce the harmful effects of radiation.
Rubella is less harmful in children than in adults.
The central idea of the folk movement was that the essential truths of national character had survived among the common people despite the harmful influence of so-called civilisation.
Similar harmful effects are caused by the pesticides that some vegetables, even if properly washed, may contain, and by mercury, a discovery that is causing many dentists to change their filling techniques.
Ozone gas, made up of three oxygen atoms, is harmful at sea level, but indispensable at an altitude of 12 to 25 kilometres, in the lower stratosphere, where it reaches its highest concentration (12 parts per million).
To find out which of the most popular remedies are effective, which are harmful and which are nothing more than a hoax, we have consulted researchers and doctors who are familiar with the latest studies on the subject.
Each time they sucked on their cigarettes, Samantha's parents raised the temperature of the burning tobacco, which incinerated some of the harmful substances and prevented them from entering their lungs. In addition, the air they inhaled along with the smoke reduced its toxicity. So, although they inhaled more smoke than their daughter, the smoke she breathed was more toxic.
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