Radio waves from smartphones may be carcinogenic - Mobile phones and their towers generate radio waves. Several studies have suggested that though low frequency radio waves aren’t harmful to humans, but over exposure to them may lead to tumours in the body.
Smartphones cause anxiety, increased stress - Cancer aside, smartphones cause a variety of health issues. They have been found to increase anxiety and mental stress in teens. Mobile radiations may also cause learning disabilities and lowered IQ in infants, according to some reports.
Answer:
The pressure exerted by the sharp knife edge is more than that exerted by the blunt one because the area on which force is exerted with a sharp knife is very small.So blunt knife cannot cut the vegetables properly.
Answer:
Wiffleball can be compared to baseball it is the same concept. There are bases and a bat. You hit the wiffleball as well as you hit a baseball.
I hope this helps
