Answer:
A. is the answer
Explanation:
Oil, coal and natural gas resources are non renewable energy sources.
the causes of most of them are unknown. Some birth defects are considered to be physical, while others are thought of as functional. Physical birth defects result in the malformation.
Criteria pollutants are simply a list of pollutants created by the EPA, designed to include the 6 most common air pollutants.
B) Carbon dioxide
CO2 is not on the EPA list.
Answer:
homo habilis
Explanation: first human to walk earth.
