Emission and Growth Trends 120
100
Vehicle miles traveled
60
Energy consumption
Percent change
20
0
Aggregate emissions
(six common pollutants)
220
240
260
1980
1995
1998
2001
2004
2007
Year
Figure 6-3
What is a valid conclusion that can be drawn from the graph in Figure 6-3 above?
O As the years go by, the number of miles traveled decreases
Although people are traveling more by car, pollution has decreased,
Pollution was at about 120 percent change in 2007
Energy consumption has changed more than total emissions and vehicle miles traveled.

the correct answer is - d. china has a large and growing population.

the fact that china has a large (the biggest) population, and it is still growing, doesn't hinder the agriculture production in the country. in fact, it can for increased production in the agriculture, since there's more labor force, as well the sheer mass of people produces lots of scientists that come up with new inventions as to how to improve this sector. nice example is the inner mongolia region in china, in general dominated by the gobi desert, but few scientist came up with a nice idea as to how to make the region productive by using plants that are very resistant to droughts, so lots of people have been employed, and the region is becoming greener and greener each year, and the production of food in this region is also increasing.

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.