One situation when it would be okay to speak on the phone while driving, would be when you are calling 911 or any emergency number.
Earth's core is extremely hot
Explanation:
The streams of dust and gas thus released form a huge and extremely thin atmosphere around the comet called the "coma". The force exerted on the coma by the Sun's radiation pressure and solar wind cause an enormous "tail" to form pointing away from the Sun.
..................!
