Air pollutants most often lead to human health problems of the
A) circulatory and respiratory systems.
B) circulatory and digestive systems.
C) integumentary and muscular systems.
D) eyes and nasal passages.
A
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What will be an ideal response?
Who are the "Born Frees"?
A) African National Congress Youth League B) black youth born after the end of apartheid in South Africa C) child soldiers in Liberia and Sierra Leone D) the Lord's Resistance Army in Uganda E) children's soccer team in Cote d'Ivoire
In terms of dietary energy, what do Mexico and South Africa have in common?
A) maize as their leading energy source B) wheat as their leading energy source C) average 1500 calories per day per capita D) rice as their leading energy source E) meat as their leading energy source
Which seismic waves are most damaging?
Which seismic waves are most damaging?
- P waves
- S waves
- Surface waves