In a mercury-in-a-glass thermometer, it is observed that the mercury level drops first before it rises. How come this happens?

An example of environmentally learned behavior is aggressive behavior, i grew up seeing many aggressive people in my life and a slowly started picking up those traits however i was able to call myself out and not give in to those traits.

Shy diving is the only sport which doesnot require a high level of physical fitness

Answer the radiant sun;