Concept

Humidity is the amount of water vapour present in the air. When temperature is high, the body normally cools itself by producing sweat. Sweat must evaporate from the skin to remove heat. High humidity leaves less scope for evaporation, so the body may not cool efficiently. As a result, the same temperature can feel hotter and more uncomfortable than it would in drier air.

Option A is correct because the combination of heat and moisture can increase discomfort and the feeling of heat. High humidity does not automatically increase cold, make rainfall impossible, or remove air. The question asks about human comfort, so the reasoning should focus on sweating and evaporation rather than on unrelated effects of humidity.

India's climate is influenced by many controls. In exams understand India's climate through multiple factors.

Climate maps show regional differences. In exams treat maps as tools for climate comparison.

Climate is a general tendency while weather shows daily changes. In exams understand the difference between normal and actual condition.

Temperature and rainfall affect vegetation type. In exams understand vegetation as both effect and indicator of climate.

Agriculture depends on availability of water and temperature. In exams write rainfall timing in crop planning.

Climate describes the usual pattern of heat, cold, moisture, and other conditions in a place. These conditions influence how comfortable people feel and can affect the spread or seriousness of some health problems. Therefore, health services should consider local climate when planning prevention, treatment facilities, warnings, and emergency arrangements. Ignoring climate may leave people less prepared for environmental risks.

Extreme heat can cause dehydration and heat stress, while severe cold can harm vulnerable people. High humidity can make heat feel stronger and may encourage some disease-related risks. These examples show why option A is correct. The other choices wrongly deny climate’s health influence or connect health with unrelated factors such as language or minerals.

Wind blows due to pressure difference. In exams remember wind formation through pressure difference.

Differences in climate controls create regional climatic variation. In exams connect regional variation with climate controls.

Temperature range helps understand whether climate is extreme or moderate. In exams connect temperature range with climate character.

Altitude affects long-term temperature; temperature generally decreases as elevation increases. Cloud cover, daily wind direction, and rainfall over a few hours are short-term weather elements. Exam tip: identify long-term controls when a question asks about climate.

Option C is correct. A sudden storm on one day is a short-term atmospheric event, so it is an example of weather, not climate. Climate refers to the long-term averages and usual patterns of conditions such as temperature, rainfall, wind, and seasons at a place. Option B is a valid description because long-term temperature and rainfall trends are key elements of climate. Exam tip: Events limited to a day, week, or particular occasion usually describe weather.

Ocean currents can affect heat and moisture along coasts. In exams consider ocean currents as a coastal climate factor.

One unusual day does not show normal climate. In exams long-term data is necessary for climate.

The main feature of monsoon is seasonal reversal of winds. In exams connect seasonal reversal with monsoon.

Timing and amount of rainfall affect water resources and farming. In exams connect rainfall distribution with planning.

Climate affects human adaptation. In exams write clothing housing and food under lifestyle.

Climate study is based on long-term data and averages. In exams write data based answers.

Mountains lift winds and change rainfall distribution. In exams remember the simple idea of relief rainfall.

Moisture in air is important for rainfall. In exams understand humidity and rainfall as connected but separate elements.