the earths atmosphere Flashcards
1
Q
how much nitrogen in the current atmosphere
A
80%
2
Q
oxygen
A
20%
3
Q
how old is the earths
A
aprox 4600 million years old
4
Q
carbon footprint definition
A
total amount of carbon dioxide and other greenhouse gasses emmited over the full life cycle of a product/event
5
Q
how is sulfur dioxide produced from fuels
A
fuels like coal contain sulfur when coal is burned sulfur atoms are oxidised reacting with the oxygen in the air and this produces sulfur dioxide gas
6
Q
effects of sulfur dioxide and nitrogen oxides
A
*dissolve in water to form acid rain—>damages statues made from limestone
*cause difficulty in breathing
7
Q
what is soot
A
unburned hydrocarbons, particulates
8
Q
A
