QUES: Largest brush diameter 915 mm

correct the punctuation.

CORRECTED: Largest brush diameter: 915 mm

QUES: At the end of the 1940s Dr Roy L Swank developed a diet for the treatment of multiple sclerosis which has helped many people

correct the punctuation.

CORRECTED: At the end of the 1940s, Dr. Roy L. Swank developed a diet for the treatment of multiple sclerosis which has helped many people.

QUES: Morning temperatures will be around 17 C During the day they will reach a maximum of 21 C Low temperatures at night will be around 11C Westerly winds are weak

correct the punctuation.

CORRECTED:
Morning temperatures will be around 17 C. During the day they will reach a maximum of 21 C. Low temperatures at night will be around 11C. Westerly winds are weak.