1. D

The amount of toxic exhaust is reduces

 

2. B

Used batteries contain harmful substances. Take to a local site for disposal

 

3. D

Build speeds up slower and not driving as fast gives greater economy

 

4. D

More fuel will be used as the tyres are not performing correctly

 

5. D

Liquid petroleum gas

 

6. B

More fuel will be used as the car is less aerodynamic