Question

class 9 number system ncert
do it please,:/​

Answer 1

Answer:

Step-by-step explanation:

hope this helps

Answer 2

Answer:

Coronaviruses (CoV) are a large family of viruses that cause illness ranging from the common cold to more severe diseases such as Middle East Respiratory Syndrome (MERS-CoV) and Severe Acute Respiratory Syndrome (SARS-CoV). A novel coronavirus (nCoV) is a new strain that has not been previously identified in humans.