Indian Monsoon

The direct answer is Option A: seasonal change in wind direction. The word monsoon refers to a seasonal reversal or change in the direction of winds. In South Asia, land and sea heat differently during different seasons. This creates pressure differences, and winds change direction; the summer monsoon generally brings moist winds from the sea toward land and rain, while winter winds are generally drier and move in the opposite broad pattern. Option A is correct because it gives the central meaning, not merely one result of monsoon. Option B is wrong because winds do not blow in the same direction throughout the year. Option C is wrong because monsoon is not only snowfall; most monsoon discussion concerns seasonal winds and rainfall. Option D is wrong because drying rivers is not the definition and may occur only in particular conditions. Memory cue: monsoon means seasonal winds, especially a seasonal change in direction.

A large part of India's rainfall comes from the southwest monsoon. Exam tip: remember the link between monsoon and rainfall.

The southwest monsoon generally enters from the Kerala coast in early June. Exam tip: remember June and Kerala together.

The southwest monsoon first reaches the Kerala coast. Exam tip: remember Kerala as the first arrival point.

The southwest monsoon divides into Arabian Sea and Bay of Bengal branches. Exam tip: remember both branch names.

The Arabian Sea branch gives heavy rain to the western coast and Western Ghats. Exam tip: connect Western Ghats with this branch.

The Bay of Bengal branch brings moisture toward northeast India. Exam tip: connect it with northeastern rainfall.

Many Indian crops depend on monsoon rainfall. Exam tip: understand monsoon as the lifeline of agriculture.

Sudden heavy rainfall at monsoon arrival is called burst of monsoon. Exam tip: connect this term with monsoon onset.

The southwest monsoon is generally active from June to September. Exam tip: connect this period with rainy season.

Withdrawal of monsoon generally begins from northwest India. Exam tip: remember withdrawal starts from the northwest.

Retreating monsoon appears after the rainy season in autumn. Exam tip: connect it with October and November.

Tamil Nadu receives important rainfall from the northeast monsoon. Exam tip: remember Tamil Nadu with northeast monsoon.

Cyclones can form in the Bay of Bengal during retreating monsoon. Exam tip: remember the east coast and cyclone link.

India's climate is deeply influenced by the monsoon. Exam tip: call India's climate monsoon climate.

In summer land heats more and forms low pressure. Exam tip: connect pressure difference with monsoon.

These winds bring moisture from the sea. Exam tip: connect southwest monsoon with moisture-laden winds.

Mountains wind direction and distance from sea change rainfall distribution in India. Exam tip: connect monsoon rainfall with uneven distribution.

The Western Ghats lift moist winds and cause rainfall. Exam tip: connect it with orographic rainfall.

During a monsoon break rainfall may reduce for some time. Exam tip: connect it with irregularity of rainfall.

Indian monsoon gets moisture from the Indian Ocean region. Exam tip: remember the Indian Ocean and monsoon link.

The southwest monsoon is linked with India's main rainy season. Exam tip: remember monsoon with rainy season.

Timing and amount of monsoon rain are very important for agriculture. Exam tip: connect monsoon with farming.

The direct answer is A, flood. Rainfall is useful when it is moderate, but excessive monsoon rain can bring more water than rivers, drains, soil and reservoirs can safely hold. Step by step, very heavy rain increases surface runoff; streams and rivers rise; low-lying land becomes waterlogged; if water spreads over settlements and fields, flooding occurs. Option A is correct because flood is a common danger of excessive rainfall. Option B, permanent drought, means a long shortage of water and is associated with insufficient rain, not excessive rain. Option C, end of rainfall, is not a necessary result; heavy rain may continue or be followed by more rain. Option D, disappearance of the Himalaya, is an impossible conclusion because rainfall does not remove a mountain range. The exam link is simple: too much rain in a short time can cause floods.

Monsoon rainfall supplies water for crops, drinking needs, rivers, reservoirs, and groundwater. When the rainfall is much lower than usual, soil moisture and available water may decline. Crops can fail, water storage can fall, and people and animals may face shortage. Such prolonged water shortage is called drought. Therefore, option B is correct. Low rainfall does not by itself cause a sea tide or avalanche, and it is not associated with flood as the most direct general result; floods are more commonly linked with excessive or intense rainfall.

The question asks which problem can increase when monsoon rainfall is low, so the answer should describe a consequence of insufficient water. Drought may be more or less severe depending on its duration, temperature, stored water, irrigation, and local conditions. The word “can” is appropriate because low rainfall does not affect every place in exactly the same way. Still, among the listed choices, drought is the clear and relevant consequence. The supplied answer B is therefore factually consistent.