Consider the following statements regarding acid rain.
1. It has a pH value of less than normal rain.
2. Burning fossil fuels is one of the major sources of acid rain.
3. Acid rain is generally harmful in the area of the source and do not blow to another area because of its weight.
Which of the statements given above is/are correct?
1
1 and 2 only
2
2 and 3 only
3
1 and 3 only
4
1, 2 and 3