QUES: Thousands of poor families have experienced a boost in income and living conditions after they have participated in the ADDA projects

correct the punctuation.

CORRECTED: Thousands of poor families have experienced a boost in income and living conditions after they have participated in the ADDA projects.

QUES: International Comparison Leave and Paid Holidays

correct the punctuation.

CORRECTED: International Comparison: Leave and Paid Holidays

QUES: It consists of a coil with a plastic tape The plastic band is coated with a ferrite layer

correct the punctuation.

CORRECTED:
It consists of a coil with a plastic tape. The plastic band is coated with a ferrite layer.