Windshields must be made of safety glass and may not be covered or treated with any material which has the effect of making the windshield reflective or in any way non-transparent. if must be free of any not required by law.

Which of the following practices is not recommended during a time of water scarcity? a. increasing wastewater recycling b. prohibiting the consumption of bottled water c. raising fines for violating outdoor water restrictions d. improving monitoring and management of local aquifers e. utilizing media to promote awareness of best practices in water management

Coal combustion produces which of the following waste products? i. tar ii. methane iii. electricity i only ii only i and ii ii and iii i, ii, and iii

Which of these is a disadvantage of hydrogen fuel cells? a. engines that use hydrogen fuel are more efficient than gasoline-powered engines. b. the only emission produced by hydrogen fuel cells is water. c. hydrogen fuel is continually available and useful for heating. d. hydrogen fuel is often purified in a process that emits lots of greenhouse gases.