The epa sets national air-quality standards for common air pollutants. the
graph shows the cha...
Biology, 28.01.2020 18:45 myparentsrock17
The epa sets national air-quality standards for common air pollutants. the
graph shows the change in the concentrations of these pollutants over time.
which pollutant have the air-quality standards had the greatest impact on?
monitored concentrations
of pollutants
1.00
pm 25
0.70
normalized concentration
ozone
pm 10
0.50
0.40
noz
so2
0.30
0.20
0.10
co
lead
0.0
1980 1985 1990 1995 2000 2005 2010
year
o a no
b. lead
o
c. ozone
o
d. pm10
Answers: 1
Biology, 21.06.2019 13:50
Which of the following is a question of morality? a.) delierately reporting false data b.) accidentally reporting false data c.) kepping a sloppy record of experimental observation d.) condition a drug experiment which will harm a lab rats
Answers: 2
Biology, 21.06.2019 19:50
Which of the following statements about c4 carbon fixation is not true? a c4 carbon fixation is an adaptation for plants exposed to high light intensityb. c4 carbon fixation occurs in more plants than c3 carbon fixation.c c4 carbon fixation is more common in areas of high temperatures than c3 carbon fixation.d. c4 carbon fixation occurs in the inner cells of a leaf rather than the entire leaf.
Answers: 3
Biology, 21.06.2019 23:00
Ricardo notices that when he plays soccer in the rain, his ball does not seem to go as far after a kick. what is the best scientific question that ricardo could ask about this observation? is soccer better played in the rain or sun? how does rain affect the distance a soccer ball can travel? how does rain affect the speed of a soccer ball? is soccer affected by the rain?
Answers: 1
Biology, 22.06.2019 02:00
Which blood cell spend most of their time in the lymphatic system?
Answers: 1
Mathematics, 03.08.2019 15:30
Physics, 03.08.2019 15:30
Physics, 03.08.2019 15:30
English, 03.08.2019 15:30
History, 03.08.2019 15:30
Physics, 03.08.2019 15:30