Answer:
the protestors were expressing their opposition to a tax on tea
All modern Vehicles have<span> internal steel beams in the door, which helps to protect the passenger compartment.
</span>
Just a few decades ago, passenger cabins were particularly vulnerable to a crash, especially if this occurred from the side of the car.
Car manufactures have spent considering time, research and money into developing light-weight and ergonomic-friendly safety measures to protect passengers.
<span />
Turbidity. As your book/question states it is a measurement of cloudiness in water.