Question

1 Statement I :
I. Limestone decomposes when it is heated in air.
Statement II :
II. Increase in the content of CO2 in the atmosphere in recent years is mainly due to the using of limestone in the manufacture of cement.

Answer 1

second answer is global warming first answer is it turns milky

Answer 2

Calcium carbonate does decompose in air when subjected to heat. its is also referred to as calcium carbonate.it is used largely in the production of cement in huge quantities and this has an effect on the atmosphere.the continued emission of carbon dioxide into the air may alter the climate resulting in drastic changes in temperatures.

tho