Option 1: The statement 1 is correct. Tornadoes are indeed smaller and more intense than hurricanes. Tornadoes are characterized by a narrow, rapidly rotating column of air that is in contact with the ground, whereas hurricanes are large, swirling storm systems that form over warm ocean waters.

Option 2: The statement 2 is incorrect. Tornadoes are not most abundant along the eastern coast of India. They can occur in various parts of the world, including the United States where they are most common, as well as other countries like Canada, Bangladesh, and Australia.

Option 3: The statement 3 is correct. The average tornado lasts for less than one hour. However, it is important to note that tornadoes can vary in duration, ranging from a few seconds to several hours.

Option 4: The statement 4 is correct. Tornadoes are most common in the afternoons in the early summer. This is because tornadoes typically form in the presence of warm, moist air and unstable atmospheric conditions, which are more prevalent during these times.

In summary, the correct statements are 1, 3, and 4. Tornadoes are smaller and more intense than hurricanes, the average tornado lasts for less than one hour,