Question

Give reasons

1) we should use aboiotic substances economically.

2) Glass can be obtained from sand but sand cannot be obtained from glass.​

Answer 1

Answer:

1.Water , sunlight , soil , oxygen , temperature are some of the abiotic factors. We must use them economically because although some of them are abundantly present but some resources like water might get over if not used judiciously.

2.Believe it or not, glass is made from liquid sand. You can make glass by heating ordinary sand (which is mostly made of silicon dioxide) until it melts and turns into a liquid. You won't find that happening on your local beach: sand melts at the incredibly high temperature of 1700°C (3090°F).

Answer 2

1 and 2 answer...

1) Water , sunlight , soil , oxygen , temperature are some of the abiotic factors. We must use them economically because although some of them are abundantly present but some resources like water might get over if not used judiciously.

2) To make glass, the sand – together with limestone and soda – is heated to 1400°C. Unlike opaque materials like metals, the electrons in the resulting compound don't have much freedom within its crystalline structure, and thus are not very effective at absorbing light energy.

Hope it helped ☺️☺️☺️