Base your answers to questions 6 through 9 on the map and the passage below and on your knowledge of Earth science. The map shows four different locations in India, labeled A, B, C, and D, where vertical sticks were placed in the ground on the same clear day. The locations of two cities in India are also shown.
Monsoons in India
A monsoon season is caused by a seasonal shift in the wind direction, which produces excessive rainfall in many parts of the world, most notably India. Cherrapunji, in northeast India, received a record 30.5 feet of rain during July 1861. During the monsoon season from early June into September, Mumbai, India averages 6.8 feet of rain. Mumbai’s total average rainfall for the other eight months of the year is only 3.9 inches.
Monsoons are caused by unequal heating rates of land and water. As the land heats throughout the summer, a large low-pressure system forms over India. The heat from the Sun also warms the surrounding ocean waters, but the water warms much more slowly. The cooler air above the ocean is more dense, creating a higher air pressure relative to the lower air pressure over India.
Which map shows both the dominant air pressure system that forms over India in the summer and the direction of surface winds around this air pressure system? [High pressure = H, Low pressure = L]