The Seasons

Correct answer: A. Kharif depends on monsoon rain and rabi may depend on winter moisture

Answer: A. Kharif crops are normally sown with the arrival of the monsoon and depend greatly on rainfall during the rainy season. Rabi crops are generally sown after the monsoon, grow during the cooler months and may use stored soil moisture, irrigation and, in some regions, winter rain. Thus the two crop groups have different seasonal associations. A is correct because it states the essential contrast without claiming that every crop depends on only one source of water. B is wrong because loo is a hot, dry summer wind and is not the common basis of both crop groups. C is wrong because cyclones are not the sole support of either group. D is wrong because sowing, growth and harvesting are clearly linked with seasons. Memory cue: Kharif follows the rains; Rabi grows in the cool season.

Correct answer: B. Very low temperature and clear cold night

Direct answer: B, very low temperature and a clear cold night. Frost forms when surfaces near the ground cool to the freezing point or below, allowing moisture to freeze. A clear night usually permits strong loss of heat from the ground, and calm, cold conditions can make the surface especially cold. A is wrong because high temperature and loo are hot-weather conditions. C is wrong because a southwest-monsoon burst brings humid winds and rain, not the usual conditions for frost. D is wrong because October heat refers to warm, humid conditions after the monsoon in parts of India. Memory cue: “Clear sky plus cold ground can produce frost.”

Correct answer: A. Temperature rises, low pressure forms, moist sea winds enter

Direct answer: A. During the hot season, strong heating raises temperatures over land. Heated air rises and contributes to the development of a low-pressure area. The pressure difference then helps draw moisture-bearing winds from the surrounding seas toward the land; these winds advance as the southwest monsoon and bring rain. B mixes unrelated cold-weather events with loo. C gives a confused sequence and includes cold conditions and land winds rather than the normal monsoon transition. D describes neither the main cause nor the correct order. Memory cue: “Heat creates low pressure; low pressure attracts moist winds.”

Correct answer: B. Kharif depends on monsoon rain and rabi may depend on winter moisture

Direct answer: B. Kharif crops are generally sown with the rainy season and are closely associated with southwest-monsoon rainfall. Rabi crops are generally grown during the cooler season; their water needs may be supported by winter rain, stored soil moisture, irrigation, or other sources. Thus the option correctly links each crop group with its principal seasonal setting without claiming that one factor is the only source of water. A is wrong because loo is a hot, dry wind and cannot explain both crop seasons. C and D ignore the clear seasonal and agricultural relationships. Memory cue: “Kharif = rain season; rabi = cool season.”

Correct answer: C. Arrival of moisture-laden South-West Monsoon after intense heat

Direct answer: C. Intense summer heating creates conditions that help establish low pressure over the heated land. The southwest monsoon then brings moisture-laden winds from the sea, producing widespread rainfall and marking the transition to the rainy season. A is wrong because a cold wave does not melt and is not the controlling explanation for the monsoon. B is wrong because frost is frozen surface moisture, not a stage that turns into a cyclone. D is physically impossible and has no connection with seasonal change. Memory cue: “Strong summer heating prepares the land; moist southwest winds bring the rain.”

Correct answer: A. Because seasons affect farming, water and life

Direct answer: A. Seasons are not merely calendar labels; changes in temperature, rainfall, winds, and humidity influence how people live and work. Farming depends on the timing and amount of rain and on suitable temperatures. Water availability, crop planning, health, transport, occupations, and daily activities can also be affected by seasonal conditions. B is wrong because seasons describe recurring weather patterns and have practical effects. C is wrong because seasons are closely related to weather and climate. D is wrong because weather occurs everywhere, not only on mountains. Memory cue: “Explain a season through both its weather and its effects on people.”

Correct answer: A. It can give thunderstorm rain and moisture to some crops in eastern India

Direct answer: A. Kal Baisakhi refers to powerful local pre-monsoon thunderstorms, especially associated with eastern parts of India. Such storms may bring rain that supplies useful moisture to some crops, although their strong winds, lightning, and hail can also cause damage. “Local” means the event does not affect the whole country in the same way; “useful” refers to possible rainfall benefits. B is wrong because these storms do not produce nationwide snowfall. C is wrong because they do not make the hot, dry loo permanent. D is wrong because they are not a mechanism that stops the monsoon. Memory cue: “Kal Baisakhi = local pre-monsoon storm: rain benefit, storm risk.”