Explanation:

Statement 1 is incorrect: Only body waves (P and S waves) from the shadow zone on the earth’s surface. Surface waves do not form a shadow zone. Statement 2 is incorrect: The shadow zone of the S-wave is much larger than that of the Pwaves. The shadow zone of P-waves appears as a band around the earth between 105° and 145° away from the epicentre. The shadow zone of S-waves is not only larger in extent but it is also a little over 40 per cent of the earth's surface. Statement 3 is correct: There are two types of body waves - S and P. The shadow zone of S waves is larger and covers around 40 % of the earth’s surface. The shadow zone of P waves is smaller (105 - 145 degrees). These shadow zones overlap with each other between 105 and 145 degrees.