Answer:The average time is 9 hours
Explanation: American teenagers spend an "astounding" nine hours a day with digital technology, entertaining themselves with streaming video, listening to music and playing games, researchers reported Tuesday. And "tweens" aged 8 to 12 are spending six hours with media, the non-profit group Common Sense Media reports.
U cant adapt to chemical changes
In the food industry, it is once every six months.
The hormone level that will be checked will be human chorionic gonadotropin. This hormone shows if she is pregnant because it is released by the placenta in urine. Placenta can only be present if she is pregnant. Hope I helped. Good luck