CLEAN : Clashes erupt after Senegal opposition leader arrested

What is the basic unit of time discussed in the introduction?

• A year

• A day

• A month

• A week

How many months are there in a year?

• 13

• 12

• 11

• 10

Which month typically has 28 or 29 days?

• April

• February

• January

• March

Which of the following months has 31 days?

• July

• September

• November

• June

What is the maximum number of days a month can have?

• 29

• 30

• 28

• 31