Question

4. How can we make a cold frame? Explain in short.​

Answer 1

Answer:

To make a cold frame start with an old, salvaged window or windows or a clear door, such as a shower door. If you can't get one, use a sheet of glass or twinwall polycarbonate secured to a simple wooden frame

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Answer 2

A cold frame is simply a box frame with a clear lid (also known as a 'light') on top. The frame is normally constructed from wood but other materials such as blocks or bricks are also common. The clear lid lets in the sunlight, trapping warm air inside while protecting plants from inclement weather