Answer:
B
Explanation:
( last) is a experience in the pasy and any word with ( ed) also means the action accrued already
Answer:
C.The discovery which was the first of its kind, in several years,caused an international stir.
Explanation:
The answer is a common flaw
Air Pollution Effects. We release a variety of chemicals into the atmosphere when we burn the fossil fuels we use every day. We breathe air to live and what we breathe has a direct impact on our health. Breathing polluted air puts you at a higher risk for asthma and other respiratory diseases.