The question is asking about the distance covered on Earth for a 1 ° change in longitude. To understand the options, we need to know that the Earth is approximately divided into 360 degrees of longitude, forming a complete circle. The correct answer is option-3: 111 km.

Option-1 (24 km) is incorrect because it is too small to cover the distance of 1 ° longitude, which is a significant portion of the Earth`s circumference.

Option-2 (69 km) is also incorrect because it is closer to the correct answer, but still not accurate enough.

Option-4 (152 km) is incorrect as it is larger than the correct answer.

Therefore, option-3 (111 km) is the closest approximation to the distance covered by 1 ° longitude on Earth.