Asthma can get worse due to

bacteria
viruses
insects
dust
viruses  

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The respiration that does not involve the presence of oxygen is known as
A. aerobic respiration
B. anaerobic respiration
C. passive Respiration
D. active respiration
The number of chemicals found in a cigarette is
A. 100
B. 200
C. 300
D. 400
The contraction of bronchi causes
A. flu
B. cough
C. fever
D. asthma
The main cause of ‘asthma’ is
A. tobacco smoke
B. pets
C. exercise
D. laughing
Tar is a chemical in a cigarette that causes
A. asthma
B. dizziness
C. cancer
D. addiction
The scientific name for flu is
A. influenza
B. diarrhea
C. pneumonia
D. saptica
Cold is caused by
A. bacteria
B. viruses
C. insects
D. dust

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