The phenomenon of marble cancer is due to
(a) soot particles (c) fog
(b) cfcs (d) acid rain

Answer:

The phenomenon of marble cancer is due to ACID RAIN.

Explanation:

The marble corrosion is a process by which the marbles or limestone used in construction of monuments and buildings is corroded away by the acid rain.  The sulphur-dioxide and  nitrogen oxides present in the atmosphere undergoes certain chemical reaction causing this acid rain. These chemical in the acid rain converts the calcium  present in the limestone or marble into salt.

Also, this marble cancer leads to change the appearance and color. Sometime due to over corrosion the monuments or building causes them disintegrate .Tajmahal is one of the monument affected by marble cancer. the white color of tai mahal is slowly turning into yellow due to this marble cancer.

rosa was looking for patterns to predict the products of chemical reactions. she recorded three similar decomposition reactions in the table.she should record 2licl + 3o2.

in the last row of the table. it is the thermal decomposition of chlorate lithium, hence, she should record these products as: lithium chloride ( 2licl ) and oxygen ( 3o2 )   2 > 2 licl + 3o2.