Both C and D are the answers. But I will go with D
Asthma- A condition in which a person's airways become inflamed, narrow and swell, and produce extra mucus, which makes it difficult to breathe.
Asthma attack- Called an asthma exacerbation, the airways become swollen and inflamed. The muscles around the airways contract and the airways produce extra mucus, causing the breathing (bronchial) tubes to narrow.
During an attack, you may cough, wheeze and have trouble breathing. Symptoms of a minor asthma attack get better with prompt home treatment. A severe asthma attack that doesn't improve with home treatment can become a life-threatening emergency.
Answer:
Lead was discovered in the water.
Explanation:
Lead sometimes may leak into the water due to contamination form either waste that was dumped into the water or there are minerals in the water that may have formed.
FalseWith as low as 0.02 percent blood alcohol reading, moderate
effects can be felt and a weakened ability to focus on more than one thing a
time is apparent. For men weighing 160-240
pounds and women 200-240 pounds, impairment begins with 0.02 percent blood alcohol.
Answer:
Aerobic activities of an intensity at least six times that of resting (6 METs), commonly defined as activities with enough intensity to produce improvements in cardiovascular fitness.
Explanation:
