8. Read the following statements regarding remote sensing:
1. Remote sensing is a technique of collecting information about the Earth's natural resources using aircraft or satellites
2. The basic tool used in remote sensing photography is infrared and false colour photography in particular
3. Remote sensing does not effect finding underground water and mineral reserves

Select the correct statements using the codes given below:

1. 1 and 3 only

2. 1, 2 and 3

3. 2 only

4. 1 and 2 only

Correct Answer :

1 and 2 only