Question

During summer, if you go near the lake, you feel relief from the heat, why?
A. With no pressure over the lake and low pressure over land, the regional pressure gradient pushes cool winds towards the land.
B. With high pressure over the lake and low pressure over land, the regional pressure gradient pushes cool winds towards the land.
C. With no pressure over the lake and high pressure over land, the regional pressure gradient pushes cool winds towards the land.
D. With high pressure over the lake and zero pressure over land, the regional pressure gradient pushes cool winds towards the land.

Answer 1

Hint: In the daytime of the summer season, the phenomenon of sea-breeze is very common. In this, the cold wind blows from the lake or water body towards the land. This happens due to the occurrence of a pressure difference between a water body and land.

Complete answer: At the time of summer, there is a difference in heating of the land and the water body near the land. During summer, the landmass heats up very easily and the air surrounding the land rises up. Due to this low pressure is created over the land. The lake or any water body, on the other hand, takes time to get heated and so during the daytime, the pressure of the water body is higher because of the heavy air as compared to that of a landmass. Because of the pressure difference, the wind blows from the water body (high pressure) to the landmass (low pressure). This phenomenon is called the sea- breeze. The wind blowing is colder and due to this near a lake or any water body, relief is felt during summertime. Summer is regarded as the hottest of all seasons. In summer, nights are long, while days are short. In the Mediterranean regions, the summer is also associated with dry weather, while in other regions, it may be associated with rainfall.
Therefore, the correct answer is option B.

Note: Climates can be classified according to the average and the typical ranges of different variables, most commonly temperature and precipitation. The most commonly used classification scheme was the “Koppen climate” classification.