Q: Answer this question:

abnormal breathing with patterns of dyspnea and apnea??

A: Cheyne–Stokes respiration


Q: Answer this question:

2022 football world cup will be held in which country??

A: Qatar


Q: Answer this question:

name of the nokia mobile phone operating system??

A: Symbian


Q: Answer this question:

predominant product when rb is allowed to react with o2??

A:
principally RbO2, rubidium superoxide