Consider the following statements with reference to the Fly ash:
- Fly ash is a byproduct from burning pulverized coal in electric power generating plants.
- It consists primarily of oxides of silicon, aluminum iron and calcium.
- There are two common types of fly ash: Class D and Class H.
Which of the statement(s) given above is/are correct? Choose the correct answer from the codes given below:
1 and 2
2 and 3
1 and 3
1, 2 and 3