4SBS pg.350 #1-6

1)
.25 kg x 4 x 10
= 10 kg

2) 
.10 L x 4 x 10
= 4 L

3) 
.25 kg x 4 x 10 x 180
= 1,800 kg

4) It is a much quicker  when buses convert the fossil fuels to atmospheric carbon dioxide. Atmospheric CO2  levels have increased by 30% since 1800 the increasing use and development of  transportation has caused an increase in fuel, resulting in a increase of CO2. 

5) I don't think that the bus idling policy will help the worldwide supply of fossil fuels because for every two minutes a car is idling, it uses about the same amount of fuel it takes to go about one mile, so in reality it uses a lot of fuel to idle, however if you actually want to save fossil fuel than the you should just turn of the bus at each stop. 

6) Isiah Martin and others may think that the bus idling policy is necessary because they may think that is helps the envioment and students safety, when in fact idling is linked to increases in asthma, allergies, heart and lung disease and cancer.