True or false if the seat is excessively reclined, the headrest is close enough to provide protection.

False. If the seat is excessively reclined the headrest will be far from the person sitting which will not provide protection. To put the sit in a recline position is to put it in rest or in a sloping angle. This does not give a person the protection he/she needs when a vehicle or any mode of transportation is moving forward. This is one of the many reasons why when planes take off they advise their passengers to fasten their seat belts and adjust their seats to an erect position to fully support the body.

The freezing point of the ice is lowered because of the rock salt which then allows the ice to observe heat from the ice cream mixture without it melting.