Concrete blocks have good thermal performance because
A) They are heavy
B) They are larger than bricks
C) They have more joints than bricks
D) They contain a lot of air
E) They contain a lot of water

Question

Quizplus · Accepted Answer

Concrete blocks contain a lot of air, which helps to insulate them and provide good thermal performance. This air is trapped within the small pockets of the block's structure, creating a barrier against heat transfer.

Concrete Blocks Have Good Thermal Performance Because