Forests are useful in fighting the effects of air pollution because they produce a. carbon b. oxygen c. hydrogen d. carbon dioxide

What major factors play a role in global warming? 1. human activity and normal climate conditions 2. natural factors and human activity 3. normal climate conditions and abnormal human activities 4. abnormal human activities and natural factors

Ray lo bisects nlm, lm=18, no=4, and ln=10. what is the value of x?

What effect has the drug trade had on some governments in middle and south america? a. it has funded political instability. b. many nations have created democratic governments. c. many governments have allowed the drug trade to fund local programs. d. it has funded political stability.