Question

Q7. Your father is building a house and was much concerned to keep it cool during summers. Contractor brought following types of glass and materials. Your father marked some. Can you tell which material were marked by your father and why? ta) Concrete with cement for roof./ Concrete with cement on layers of thermocol sheets.​

Answer 1

Answer:

please mark my ans branlist answer

Explanation:

yo

Answer 2

Answer:

b) Concrete with cement on layers on thermacol sheet.because it cools down the atmosphere.